155910625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 216930560

約数和(自身を除く): 61019935

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 619, 625, 775, 1625, 2015, 3095, 3875, 8047, 8125, 10075, 15475, 19189, 19375, 40235, 50375, 77375, 95945, 201175, 249457, 251875, 386875, 479725, 1005875, 1247285, 2398625, 5029375, 6236425, 11993125, 31182125, 155910625]

約数ペア:

[(1, 155910625), (5, 31182125), (13, 11993125), (25, 6236425), (31, 5029375), (65, 2398625), (125, 1247285), (155, 1005875), (325, 479725), (403, 386875), (619, 251875), (625, 249457), (775, 201175), (1625, 95945), (2015, 77375), (3095, 50375), (3875, 40235), (8047, 19375), (8125, 19189), (10075, 15475)]