19829880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 256

約数和(自身を含む): 78566400

約数和(自身を除く): 58736520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 43, 45, 54, 56, 60, 61, 63, 70, 72, 84, 86, 90, 105, 108, 120, 122, 126, 129, 135, 140, 168, 172, 180, 183, 189, 210, 215, 216, 244, 252, 258, 270, 280, 301, 305, 315, 344, 360, 366, 378, 387, 420, 427, 430, 488, 504, 516, 540, 549, 602, 610, 630, 645, 732, 756, 774, 840, 854, 860, 903, 915, 945, 1032, 1080, 1098, 1161, 1204, 1220, 1260, 1281, 1290, 1464, 1505, 1512, 1548, 1647, 1708, 1720, 1806, 1830, 1890, 1935, 2135, 2196, 2322, 2408, 2440, 2520, 2562, 2580, 2623, 2709, 2745, 3010, 3096, 3294, 3416, 3612, 3660, 3780, 3843, 3870, 4270, 4392, 4515, 4644, 5124, 5160, 5246, 5418, 5490, 5805, 6020, 6405, 6588, 7224, 7320, 7560, 7686, 7740, 7869, 8127, 8235, 8540, 9030, 9288, 10248, 10492, 10836, 10980, 11529, 11610, 12040, 12810, 13115, 13176, 13545, 15372, 15480, 15738, 16254, 16470, 17080, 18060, 18361, 19215, 20984, 21672, 21960, 23058, 23220, 23607, 25620, 26230, 27090, 30744, 31476, 32508, 32940, 36120, 36722, 38430, 39345, 40635, 46116, 46440, 47214, 51240, 52460, 54180, 55083, 57645, 62952, 65016, 65880, 70821, 73444, 76860, 78690, 81270, 91805, 92232, 94428, 104920, 108360, 110166, 115290, 118035, 141642, 146888, 153720, 157380, 162540, 165249, 183610, 188856, 220332, 230580, 236070, 275415, 283284, 314760, 325080, 330498, 354105, 367220, 440664, 461160, 472140, 495747, 550830, 566568, 660996, 708210, 734440, 826245, 944280, 991494, 1101660, 1321992, 1416420, 1652490, 1982988, 2203320, 2478735, 2832840, 3304980, 3965976, 4957470, 6609960, 9914940, 19829880]

約数ペア:

[(1, 19829880), (2, 9914940), (3, 6609960), (4, 4957470), (5, 3965976), (6, 3304980), (7, 2832840), (8, 2478735), (9, 2203320), (10, 1982988), (12, 1652490), (14, 1416420), (15, 1321992), (18, 1101660), (20, 991494), (21, 944280), (24, 826245), (27, 734440), (28, 708210), (30, 660996), (35, 566568), (36, 550830), (40, 495747), (42, 472140), (43, 461160), (45, 440664), (54, 367220), (56, 354105), (60, 330498), (61, 325080), (63, 314760), (70, 283284), (72, 275415), (84, 236070), (86, 230580), (90, 220332), (105, 188856), (108, 183610), (120, 165249), (122, 162540), (126, 157380), (129, 153720), (135, 146888), (140, 141642), (168, 118035), (172, 115290), (180, 110166), (183, 108360), (189, 104920), (210, 94428), (215, 92232), (216, 91805), (244, 81270), (252, 78690), (258, 76860), (270, 73444), (280, 70821), (301, 65880), (305, 65016), (315, 62952), (344, 57645), (360, 55083), (366, 54180), (378, 52460), (387, 51240), (420, 47214), (427, 46440), (430, 46116), (488, 40635), (504, 39345), (516, 38430), (540, 36722), (549, 36120), (602, 32940), (610, 32508), (630, 31476), (645, 30744), (732, 27090), (756, 26230), (774, 25620), (840, 23607), (854, 23220), (860, 23058), (903, 21960), (915, 21672), (945, 20984), (1032, 19215), (1080, 18361), (1098, 18060), (1161, 17080), (1204, 16470), (1220, 16254), (1260, 15738), (1281, 15480), (1290, 15372), (1464, 13545), (1505, 13176), (1512, 13115), (1548, 12810), (1647, 12040), (1708, 11610), (1720, 11529), (1806, 10980), (1830, 10836), (1890, 10492), (1935, 10248), (2135, 9288), (2196, 9030), (2322, 8540), (2408, 8235), (2440, 8127), (2520, 7869), (2562, 7740), (2580, 7686), (2623, 7560), (2709, 7320), (2745, 7224), (3010, 6588), (3096, 6405), (3294, 6020), (3416, 5805), (3612, 5490), (3660, 5418), (3780, 5246), (3843, 5160), (3870, 5124), (4270, 4644), (4392, 4515)]