2015620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3251}}^1$

素因数の和:3291

約数の個数: 24

約数和(自身を含む): 4370688

約数和(自身を除く): 2355068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3251, 6502, 13004, 16255, 32510, 65020, 100781, 201562, 403124, 503905, 1007810, 2015620]

約数ペア:

[(1, 2015620), (2, 1007810), (4, 503905), (5, 403124), (10, 201562), (20, 100781), (31, 65020), (62, 32510), (124, 16255), (155, 13004), (310, 6502), (620, 3251)]