31788120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 256

約数和(自身を含む): 121927680

約数和(自身を除く): 90139560

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, 52, 56, 60, 65, 70, 71, 78, 82, 84, 91, 104, 105, 120, 123, 130, 140, 142, 156, 164, 168, 182, 195, 205, 210, 213, 246, 260, 273, 280, 284, 287, 312, 328, 355, 364, 390, 410, 420, 426, 455, 492, 497, 520, 533, 546, 568, 574, 615, 710, 728, 780, 820, 840, 852, 861, 910, 923, 984, 994, 1065, 1066, 1092, 1148, 1230, 1365, 1420, 1435, 1491, 1560, 1599, 1640, 1704, 1722, 1820, 1846, 1988, 2130, 2132, 2184, 2296, 2460, 2485, 2665, 2730, 2769, 2840, 2870, 2911, 2982, 3198, 3444, 3640, 3692, 3731, 3976, 4260, 4264, 4305, 4615, 4920, 4970, 5330, 5460, 5538, 5740, 5822, 5964, 6396, 6461, 6888, 7384, 7455, 7462, 7995, 8520, 8610, 8733, 9230, 9940, 10660, 10920, 11076, 11193, 11480, 11644, 11928, 12792, 12922, 13845, 14555, 14910, 14924, 15990, 17220, 17466, 18460, 18655, 19383, 19880, 20377, 21320, 22152, 22386, 23288, 25844, 27690, 29110, 29820, 29848, 31980, 32305, 34440, 34932, 36920, 37310, 37843, 38766, 40754, 43665, 44772, 51688, 55380, 55965, 58220, 59640, 61131, 63960, 64610, 69864, 74620, 75686, 77532, 81508, 87330, 89544, 96915, 101885, 110760, 111930, 113529, 116440, 122262, 129220, 149240, 151372, 155064, 163016, 174660, 189215, 193830, 203770, 223860, 227058, 244524, 258440, 264901, 302744, 305655, 349320, 378430, 387660, 407540, 447720, 454116, 489048, 529802, 567645, 611310, 756860, 775320, 794703, 815080, 908232, 1059604, 1135290, 1222620, 1324505, 1513720, 1589406, 2119208, 2270580, 2445240, 2649010, 3178812, 3973515, 4541160, 5298020, 6357624, 7947030, 10596040, 15894060, 31788120]

約数ペア:

[(1, 31788120), (2, 15894060), (3, 10596040), (4, 7947030), (5, 6357624), (6, 5298020), (7, 4541160), (8, 3973515), (10, 3178812), (12, 2649010), (13, 2445240), (14, 2270580), (15, 2119208), (20, 1589406), (21, 1513720), (24, 1324505), (26, 1222620), (28, 1135290), (30, 1059604), (35, 908232), (39, 815080), (40, 794703), (41, 775320), (42, 756860), (52, 611310), (56, 567645), (60, 529802), (65, 489048), (70, 454116), (71, 447720), (78, 407540), (82, 387660), (84, 378430), (91, 349320), (104, 305655), (105, 302744), (120, 264901), (123, 258440), (130, 244524), (140, 227058), (142, 223860), (156, 203770), (164, 193830), (168, 189215), (182, 174660), (195, 163016), (205, 155064), (210, 151372), (213, 149240), (246, 129220), (260, 122262), (273, 116440), (280, 113529), (284, 111930), (287, 110760), (312, 101885), (328, 96915), (355, 89544), (364, 87330), (390, 81508), (410, 77532), (420, 75686), (426, 74620), (455, 69864), (492, 64610), (497, 63960), (520, 61131), (533, 59640), (546, 58220), (568, 55965), (574, 55380), (615, 51688), (710, 44772), (728, 43665), (780, 40754), (820, 38766), (840, 37843), (852, 37310), (861, 36920), (910, 34932), (923, 34440), (984, 32305), (994, 31980), (1065, 29848), (1066, 29820), (1092, 29110), (1148, 27690), (1230, 25844), (1365, 23288), (1420, 22386), (1435, 22152), (1491, 21320), (1560, 20377), (1599, 19880), (1640, 19383), (1704, 18655), (1722, 18460), (1820, 17466), (1846, 17220), (1988, 15990), (2130, 14924), (2132, 14910), (2184, 14555), (2296, 13845), (2460, 12922), (2485, 12792), (2665, 11928), (2730, 11644), (2769, 11480), (2840, 11193), (2870, 11076), (2911, 10920), (2982, 10660), (3198, 9940), (3444, 9230), (3640, 8733), (3692, 8610), (3731, 8520), (3976, 7995), (4260, 7462), (4264, 7455), (4305, 7384), (4615, 6888), (4920, 6461), (4970, 6396), (5330, 5964), (5460, 5822), (5538, 5740)]