221706875

素因数分解:

$5^4\times {\mathrm{13}}^2\times {\mathrm{2099}}^1$

素因数の和:2145

約数の個数: 30

約数和(自身を含む): 300138300

約数和(自身を除く): 78431425

約数列:

[1, 5, 13, 25, 65, 125, 169, 325, 625, 845, 1625, 2099, 4225, 8125, 10495, 21125, 27287, 52475, 105625, 136435, 262375, 354731, 682175, 1311875, 1773655, 3410875, 8868275, 17054375, 44341375, 221706875]

約数ペア:

[(1, 221706875), (5, 44341375), (13, 17054375), (25, 8868275), (65, 3410875), (125, 1773655), (169, 1311875), (325, 682175), (625, 354731), (845, 262375), (1625, 136435), (2099, 105625), (4225, 52475), (8125, 27287), (10495, 21125)]