31198440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2857}}^1$

素因数の和:2891

約数の個数: 128

約数和(自身を含む): 115234560

約数和(自身を除く): 84036120

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, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 2857, 3640, 5460, 5714, 8571, 10920, 11428, 14285, 17142, 19999, 22856, 28570, 34284, 37141, 39998, 42855, 57140, 59997, 68568, 74282, 79996, 85710, 99995, 111423, 114280, 119994, 148564, 159992, 171420, 185705, 199990, 222846, 239988, 259987, 297128, 299985, 342840, 371410, 399980, 445692, 479976, 519974, 557115, 599970, 742820, 779961, 799960, 891384, 1039948, 1114230, 1199940, 1299935, 1485640, 1559922, 2079896, 2228460, 2399880, 2599870, 3119844, 3899805, 4456920, 5199740, 6239688, 7799610, 10399480, 15599220, 31198440]

約数ペア:

[(1, 31198440), (2, 15599220), (3, 10399480), (4, 7799610), (5, 6239688), (6, 5199740), (7, 4456920), (8, 3899805), (10, 3119844), (12, 2599870), (13, 2399880), (14, 2228460), (15, 2079896), (20, 1559922), (21, 1485640), (24, 1299935), (26, 1199940), (28, 1114230), (30, 1039948), (35, 891384), (39, 799960), (40, 779961), (42, 742820), (52, 599970), (56, 557115), (60, 519974), (65, 479976), (70, 445692), (78, 399980), (84, 371410), (91, 342840), (104, 299985), (105, 297128), (120, 259987), (130, 239988), (140, 222846), (156, 199990), (168, 185705), (182, 171420), (195, 159992), (210, 148564), (260, 119994), (273, 114280), (280, 111423), (312, 99995), (364, 85710), (390, 79996), (420, 74282), (455, 68568), (520, 59997), (546, 57140), (728, 42855), (780, 39998), (840, 37141), (910, 34284), (1092, 28570), (1365, 22856), (1560, 19999), (1820, 17142), (2184, 14285), (2730, 11428), (2857, 10920), (3640, 8571), (5460, 5714)]