21938280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:89

約数の個数: 256

約数和(自身を含む): 84672000

約数和(自身を除く): 62733720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 41, 42, 49, 52, 56, 60, 65, 70, 78, 82, 84, 91, 98, 104, 105, 120, 123, 130, 140, 147, 156, 164, 168, 182, 195, 196, 205, 210, 245, 246, 260, 273, 280, 287, 294, 312, 328, 343, 364, 390, 392, 410, 420, 455, 490, 492, 520, 533, 546, 574, 588, 615, 637, 686, 728, 735, 780, 820, 840, 861, 910, 980, 984, 1029, 1066, 1092, 1148, 1176, 1230, 1274, 1365, 1372, 1435, 1470, 1560, 1599, 1640, 1715, 1722, 1820, 1911, 1960, 2009, 2058, 2132, 2184, 2296, 2460, 2548, 2665, 2730, 2744, 2870, 2940, 3185, 3198, 3430, 3444, 3640, 3731, 3822, 4018, 4116, 4264, 4305, 4459, 4920, 5096, 5145, 5330, 5460, 5740, 5880, 6027, 6370, 6396, 6860, 6888, 7462, 7644, 7995, 8036, 8232, 8610, 8918, 9555, 10045, 10290, 10660, 10920, 11193, 11480, 12054, 12740, 12792, 13377, 13720, 14063, 14924, 15288, 15990, 16072, 17220, 17836, 18655, 19110, 20090, 20580, 21320, 22295, 22386, 24108, 25480, 26117, 26754, 28126, 29848, 30135, 31980, 34440, 35672, 37310, 38220, 40180, 41160, 42189, 44590, 44772, 48216, 52234, 53508, 55965, 56252, 60270, 63960, 66885, 70315, 74620, 76440, 78351, 80360, 84378, 89180, 89544, 104468, 107016, 111930, 112504, 120540, 130585, 133770, 140630, 149240, 156702, 168756, 178360, 182819, 208936, 210945, 223860, 241080, 261170, 267540, 281260, 313404, 337512, 365638, 391755, 421890, 447720, 522340, 535080, 548457, 562520, 626808, 731276, 783510, 843780, 914095, 1044680, 1096914, 1462552, 1567020, 1687560, 1828190, 2193828, 2742285, 3134040, 3656380, 4387656, 5484570, 7312760, 10969140, 21938280]

約数ペア:

[(1, 21938280), (2, 10969140), (3, 7312760), (4, 5484570), (5, 4387656), (6, 3656380), (7, 3134040), (8, 2742285), (10, 2193828), (12, 1828190), (13, 1687560), (14, 1567020), (15, 1462552), (20, 1096914), (21, 1044680), (24, 914095), (26, 843780), (28, 783510), (30, 731276), (35, 626808), (39, 562520), (40, 548457), (41, 535080), (42, 522340), (49, 447720), (52, 421890), (56, 391755), (60, 365638), (65, 337512), (70, 313404), (78, 281260), (82, 267540), (84, 261170), (91, 241080), (98, 223860), (104, 210945), (105, 208936), (120, 182819), (123, 178360), (130, 168756), (140, 156702), (147, 149240), (156, 140630), (164, 133770), (168, 130585), (182, 120540), (195, 112504), (196, 111930), (205, 107016), (210, 104468), (245, 89544), (246, 89180), (260, 84378), (273, 80360), (280, 78351), (287, 76440), (294, 74620), (312, 70315), (328, 66885), (343, 63960), (364, 60270), (390, 56252), (392, 55965), (410, 53508), (420, 52234), (455, 48216), (490, 44772), (492, 44590), (520, 42189), (533, 41160), (546, 40180), (574, 38220), (588, 37310), (615, 35672), (637, 34440), (686, 31980), (728, 30135), (735, 29848), (780, 28126), (820, 26754), (840, 26117), (861, 25480), (910, 24108), (980, 22386), (984, 22295), (1029, 21320), (1066, 20580), (1092, 20090), (1148, 19110), (1176, 18655), (1230, 17836), (1274, 17220), (1365, 16072), (1372, 15990), (1435, 15288), (1470, 14924), (1560, 14063), (1599, 13720), (1640, 13377), (1715, 12792), (1722, 12740), (1820, 12054), (1911, 11480), (1960, 11193), (2009, 10920), (2058, 10660), (2132, 10290), (2184, 10045), (2296, 9555), (2460, 8918), (2548, 8610), (2665, 8232), (2730, 8036), (2744, 7995), (2870, 7644), (2940, 7462), (3185, 6888), (3198, 6860), (3430, 6396), (3444, 6370), (3640, 6027), (3731, 5880), (3822, 5740), (4018, 5460), (4116, 5330), (4264, 5145), (4305, 5096), (4459, 4920)]