2155180625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 3051373248

約数和(自身を除く): 896192623

約数列:

[1, 5, 13, 25, 37, 65, 67, 107, 125, 185, 325, 335, 481, 535, 625, 871, 925, 1391, 1625, 1675, 2405, 2479, 2675, 3959, 4355, 4625, 6955, 7169, 8125, 8375, 12025, 12395, 13375, 19795, 21775, 23125, 32227, 34775, 35845, 41875, 51467, 60125, 61975, 66875, 93197, 98975, 108875, 161135, 173875, 179225, 257335, 265253, 300625, 309875, 465985, 494875, 544375, 805675, 869375, 896125, 1286675, 1326265, 1549375, 2329925, 2474375, 3448289, 4028375, 4480625, 6433375, 6631325, 11649625, 17241445, 20141875, 32166875, 33156625, 58248125, 86207225, 165783125, 431036125, 2155180625]

約数ペア:

[(1, 2155180625), (5, 431036125), (13, 165783125), (25, 86207225), (37, 58248125), (65, 33156625), (67, 32166875), (107, 20141875), (125, 17241445), (185, 11649625), (325, 6631325), (335, 6433375), (481, 4480625), (535, 4028375), (625, 3448289), (871, 2474375), (925, 2329925), (1391, 1549375), (1625, 1326265), (1675, 1286675), (2405, 896125), (2479, 869375), (2675, 805675), (3959, 544375), (4355, 494875), (4625, 465985), (6955, 309875), (7169, 300625), (8125, 265253), (8375, 257335), (12025, 179225), (12395, 173875), (13375, 161135), (19795, 108875), (21775, 98975), (23125, 93197), (32227, 66875), (34775, 61975), (35845, 60125), (41875, 51467)]