20008125

素因数分解:

$3^2\times 5^4\times {\mathrm{3557}}^1$

素因数の和:3583

約数の個数: 30

約数和(自身を含む): 36124374

約数和(自身を除く): 16116249

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3557, 5625, 10671, 17785, 32013, 53355, 88925, 160065, 266775, 444625, 800325, 1333875, 2223125, 4001625, 6669375, 20008125]

約数ペア:

[(1, 20008125), (3, 6669375), (5, 4001625), (9, 2223125), (15, 1333875), (25, 800325), (45, 444625), (75, 266775), (125, 160065), (225, 88925), (375, 53355), (625, 32013), (1125, 17785), (1875, 10671), (3557, 5625)]