320415745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 452734128

約数和(自身を除く): 132318383

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 289, 461, 481, 629, 1105, 1445, 2305, 2405, 3145, 3757, 5993, 7837, 8177, 10693, 17057, 18785, 29965, 39185, 40885, 53465, 85285, 101881, 133229, 139009, 221741, 289969, 509405, 666145, 695045, 1108705, 1449845, 1731977, 3769597, 4929473, 8659885, 18847985, 24647365, 64083149, 320415745]

約数ペア:

[(1, 320415745), (5, 64083149), (13, 24647365), (17, 18847985), (37, 8659885), (65, 4929473), (85, 3769597), (185, 1731977), (221, 1449845), (289, 1108705), (461, 695045), (481, 666145), (629, 509405), (1105, 289969), (1445, 221741), (2305, 139009), (2405, 133229), (3145, 101881), (3757, 85285), (5993, 53465), (7837, 40885), (8177, 39185), (10693, 29965), (17057, 18785)]