21425040

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:151

約数の個数: 320

約数和(自身を含む): 91660800

約数和(自身を除く): 70235760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 54, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 108, 109, 112, 117, 120, 126, 130, 135, 140, 144, 156, 168, 180, 182, 189, 195, 208, 210, 216, 218, 234, 240, 252, 260, 270, 273, 280, 312, 315, 327, 336, 351, 360, 364, 378, 390, 420, 432, 436, 455, 468, 504, 520, 540, 545, 546, 560, 585, 624, 630, 654, 702, 720, 728, 756, 763, 780, 819, 840, 872, 910, 936, 945, 981, 1008, 1040, 1080, 1090, 1092, 1170, 1260, 1308, 1365, 1404, 1417, 1456, 1512, 1526, 1560, 1635, 1638, 1680, 1744, 1755, 1820, 1872, 1890, 1962, 2160, 2180, 2184, 2289, 2340, 2457, 2520, 2616, 2730, 2808, 2834, 2943, 3024, 3052, 3120, 3270, 3276, 3510, 3640, 3780, 3815, 3924, 4095, 4251, 4360, 4368, 4578, 4680, 4905, 4914, 5040, 5232, 5460, 5616, 5668, 5886, 6104, 6540, 6552, 6867, 7020, 7085, 7280, 7560, 7630, 7848, 8190, 8502, 8720, 9156, 9360, 9810, 9828, 9919, 10920, 11336, 11445, 11772, 12208, 12285, 12753, 13080, 13104, 13734, 14040, 14170, 14715, 15120, 15260, 15696, 16380, 17004, 18312, 19620, 19656, 19838, 20601, 21255, 21840, 22672, 22890, 23544, 24570, 25506, 26160, 27468, 28080, 28340, 29430, 29757, 30520, 32760, 34008, 34335, 36624, 38259, 39240, 39312, 39676, 41202, 42510, 45780, 47088, 49140, 49595, 51012, 54936, 56680, 58860, 59514, 61040, 63765, 65520, 68016, 68670, 76518, 78480, 79352, 82404, 85020, 89271, 91560, 98280, 99190, 102024, 103005, 109872, 113360, 117720, 119028, 127530, 137340, 148785, 153036, 158704, 164808, 170040, 178542, 183120, 191295, 196560, 198380, 204048, 206010, 235440, 238056, 255060, 267813, 274680, 297570, 306072, 329616, 340080, 357084, 382590, 396760, 412020, 446355, 476112, 510120, 535626, 549360, 595140, 612144, 714168, 765180, 793520, 824040, 892710, 1020240, 1071252, 1190280, 1339065, 1428336, 1530360, 1648080, 1785420, 2142504, 2380560, 2678130, 3060720, 3570840, 4285008, 5356260, 7141680, 10712520, 21425040]

約数ペア:

[(1, 21425040), (2, 10712520), (3, 7141680), (4, 5356260), (5, 4285008), (6, 3570840), (7, 3060720), (8, 2678130), (9, 2380560), (10, 2142504), (12, 1785420), (13, 1648080), (14, 1530360), (15, 1428336), (16, 1339065), (18, 1190280), (20, 1071252), (21, 1020240), (24, 892710), (26, 824040), (27, 793520), (28, 765180), (30, 714168), (35, 612144), (36, 595140), (39, 549360), (40, 535626), (42, 510120), (45, 476112), (48, 446355), (52, 412020), (54, 396760), (56, 382590), (60, 357084), (63, 340080), (65, 329616), (70, 306072), (72, 297570), (78, 274680), (80, 267813), (84, 255060), (90, 238056), (91, 235440), (104, 206010), (105, 204048), (108, 198380), (109, 196560), (112, 191295), (117, 183120), (120, 178542), (126, 170040), (130, 164808), (135, 158704), (140, 153036), (144, 148785), (156, 137340), (168, 127530), (180, 119028), (182, 117720), (189, 113360), (195, 109872), (208, 103005), (210, 102024), (216, 99190), (218, 98280), (234, 91560), (240, 89271), (252, 85020), (260, 82404), (270, 79352), (273, 78480), (280, 76518), (312, 68670), (315, 68016), (327, 65520), (336, 63765), (351, 61040), (360, 59514), (364, 58860), (378, 56680), (390, 54936), (420, 51012), (432, 49595), (436, 49140), (455, 47088), (468, 45780), (504, 42510), (520, 41202), (540, 39676), (545, 39312), (546, 39240), (560, 38259), (585, 36624), (624, 34335), (630, 34008), (654, 32760), (702, 30520), (720, 29757), (728, 29430), (756, 28340), (763, 28080), (780, 27468), (819, 26160), (840, 25506), (872, 24570), (910, 23544), (936, 22890), (945, 22672), (981, 21840), (1008, 21255), (1040, 20601), (1080, 19838), (1090, 19656), (1092, 19620), (1170, 18312), (1260, 17004), (1308, 16380), (1365, 15696), (1404, 15260), (1417, 15120), (1456, 14715), (1512, 14170), (1526, 14040), (1560, 13734), (1635, 13104), (1638, 13080), (1680, 12753), (1744, 12285), (1755, 12208), (1820, 11772), (1872, 11445), (1890, 11336), (1962, 10920), (2160, 9919), (2180, 9828), (2184, 9810), (2289, 9360), (2340, 9156), (2457, 8720), (2520, 8502), (2616, 8190), (2730, 7848), (2808, 7630), (2834, 7560), (2943, 7280), (3024, 7085), (3052, 7020), (3120, 6867), (3270, 6552), (3276, 6540), (3510, 6104), (3640, 5886), (3780, 5668), (3815, 5616), (3924, 5460), (4095, 5232), (4251, 5040), (4360, 4914), (4368, 4905), (4578, 4680)]