20121949250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{151009}}^1$

素因数の和:151080

約数の個数: 64

約数和(自身を含む): 41555535840

約数和(自身を除く): 21433586590

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 50, 65, 82, 125, 130, 205, 250, 325, 410, 533, 650, 1025, 1066, 1625, 2050, 2665, 3250, 5125, 5330, 10250, 13325, 26650, 66625, 133250, 151009, 302018, 755045, 1510090, 1963117, 3775225, 3926234, 6191369, 7550450, 9815585, 12382738, 18876125, 19631170, 30956845, 37752250, 49077925, 61913690, 80487797, 98155850, 154784225, 160975594, 245389625, 309568450, 402438985, 490779250, 773921125, 804877970, 1547842250, 2012194925, 4024389850, 10060974625, 20121949250]

約数ペア:

[(1, 20121949250), (2, 10060974625), (5, 4024389850), (10, 2012194925), (13, 1547842250), (25, 804877970), (26, 773921125), (41, 490779250), (50, 402438985), (65, 309568450), (82, 245389625), (125, 160975594), (130, 154784225), (205, 98155850), (250, 80487797), (325, 61913690), (410, 49077925), (533, 37752250), (650, 30956845), (1025, 19631170), (1066, 18876125), (1625, 12382738), (2050, 9815585), (2665, 7550450), (3250, 6191369), (5125, 3926234), (5330, 3775225), (10250, 1963117), (13325, 1510090), (26650, 755045), (66625, 302018), (133250, 151009)]