1998403920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:635

約数の個数: 320

約数和(自身を含む): 7251321600

約数和(自身を除く): 5252917680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 61, 72, 80, 87, 90, 108, 116, 120, 122, 135, 144, 145, 174, 180, 183, 216, 232, 240, 244, 261, 270, 290, 305, 348, 360, 366, 432, 435, 464, 488, 522, 523, 540, 549, 580, 610, 696, 720, 732, 783, 870, 915, 976, 1044, 1046, 1080, 1098, 1160, 1220, 1305, 1392, 1464, 1566, 1569, 1647, 1740, 1769, 1830, 2088, 2092, 2160, 2196, 2320, 2440, 2610, 2615, 2745, 2928, 3132, 3138, 3294, 3480, 3538, 3660, 3915, 4176, 4184, 4392, 4707, 4880, 5220, 5230, 5307, 5490, 6264, 6276, 6588, 6960, 7076, 7320, 7830, 7845, 8235, 8368, 8784, 8845, 9414, 10440, 10460, 10614, 10980, 12528, 12552, 13176, 14121, 14152, 14640, 15167, 15660, 15690, 15921, 16470, 17690, 18828, 20880, 20920, 21228, 21960, 23535, 25104, 26352, 26535, 28242, 28304, 30334, 31320, 31380, 31842, 31903, 32940, 35380, 37656, 41840, 42456, 43920, 45501, 47070, 47763, 53070, 56484, 60668, 62640, 62760, 63684, 63806, 65880, 70605, 70760, 75312, 75835, 79605, 84912, 91002, 94140, 95526, 95709, 106140, 112968, 121336, 125520, 127368, 127612, 131760, 136503, 141210, 141520, 151670, 159210, 159515, 182004, 188280, 191052, 191418, 212280, 225936, 227505, 238815, 242672, 254736, 255224, 273006, 282420, 287127, 303340, 318420, 319030, 364008, 376560, 382104, 382836, 409509, 424560, 455010, 477630, 478545, 510448, 546012, 564840, 574254, 606680, 636840, 638060, 682515, 728016, 764208, 765672, 819018, 861381, 910020, 925187, 955260, 957090, 1092024, 1129680, 1148508, 1213360, 1273680, 1276120, 1365030, 1435635, 1531344, 1638036, 1722762, 1820040, 1850374, 1910520, 1914180, 2047545, 2184048, 2297016, 2552240, 2730060, 2775561, 2871270, 3276072, 3445524, 3640080, 3700748, 3821040, 3828360, 4095090, 4306905, 4594032, 4625935, 5460120, 5551122, 5742540, 6552144, 6891048, 7401496, 7656720, 8190180, 8326683, 8613810, 9251870, 10920240, 11102244, 11485080, 13782096, 13877805, 14802992, 16380360, 16653366, 17227620, 18503740, 22204488, 22970160, 24980049, 27755610, 32760720, 33306732, 34455240, 37007480, 41633415, 44408976, 49960098, 55511220, 66613464, 68910480, 74014960, 83266830, 99920196, 111022440, 124900245, 133226928, 166533660, 199840392, 222044880, 249800490, 333067320, 399680784, 499600980, 666134640, 999201960, 1998403920]

約数ペア:

[(1, 1998403920), (2, 999201960), (3, 666134640), (4, 499600980), (5, 399680784), (6, 333067320), (8, 249800490), (9, 222044880), (10, 199840392), (12, 166533660), (15, 133226928), (16, 124900245), (18, 111022440), (20, 99920196), (24, 83266830), (27, 74014960), (29, 68910480), (30, 66613464), (36, 55511220), (40, 49960098), (45, 44408976), (48, 41633415), (54, 37007480), (58, 34455240), (60, 33306732), (61, 32760720), (72, 27755610), (80, 24980049), (87, 22970160), (90, 22204488), (108, 18503740), (116, 17227620), (120, 16653366), (122, 16380360), (135, 14802992), (144, 13877805), (145, 13782096), (174, 11485080), (180, 11102244), (183, 10920240), (216, 9251870), (232, 8613810), (240, 8326683), (244, 8190180), (261, 7656720), (270, 7401496), (290, 6891048), (305, 6552144), (348, 5742540), (360, 5551122), (366, 5460120), (432, 4625935), (435, 4594032), (464, 4306905), (488, 4095090), (522, 3828360), (523, 3821040), (540, 3700748), (549, 3640080), (580, 3445524), (610, 3276072), (696, 2871270), (720, 2775561), (732, 2730060), (783, 2552240), (870, 2297016), (915, 2184048), (976, 2047545), (1044, 1914180), (1046, 1910520), (1080, 1850374), (1098, 1820040), (1160, 1722762), (1220, 1638036), (1305, 1531344), (1392, 1435635), (1464, 1365030), (1566, 1276120), (1569, 1273680), (1647, 1213360), (1740, 1148508), (1769, 1129680), (1830, 1092024), (2088, 957090), (2092, 955260), (2160, 925187), (2196, 910020), (2320, 861381), (2440, 819018), (2610, 765672), (2615, 764208), (2745, 728016), (2928, 682515), (3132, 638060), (3138, 636840), (3294, 606680), (3480, 574254), (3538, 564840), (3660, 546012), (3915, 510448), (4176, 478545), (4184, 477630), (4392, 455010), (4707, 424560), (4880, 409509), (5220, 382836), (5230, 382104), (5307, 376560), (5490, 364008), (6264, 319030), (6276, 318420), (6588, 303340), (6960, 287127), (7076, 282420), (7320, 273006), (7830, 255224), (7845, 254736), (8235, 242672), (8368, 238815), (8784, 227505), (8845, 225936), (9414, 212280), (10440, 191418), (10460, 191052), (10614, 188280), (10980, 182004), (12528, 159515), (12552, 159210), (13176, 151670), (14121, 141520), (14152, 141210), (14640, 136503), (15167, 131760), (15660, 127612), (15690, 127368), (15921, 125520), (16470, 121336), (17690, 112968), (18828, 106140), (20880, 95709), (20920, 95526), (21228, 94140), (21960, 91002), (23535, 84912), (25104, 79605), (26352, 75835), (26535, 75312), (28242, 70760), (28304, 70605), (30334, 65880), (31320, 63806), (31380, 63684), (31842, 62760), (31903, 62640), (32940, 60668), (35380, 56484), (37656, 53070), (41840, 47763), (42456, 47070), (43920, 45501)]