201612220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{325181}}^1$

素因数の和:325221

約数の個数: 24

約数和(自身を含む): 437044608

約数和(自身を除く): 235432388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 325181, 650362, 1300724, 1625905, 3251810, 6503620, 10080611, 20161222, 40322444, 50403055, 100806110, 201612220]

約数ペア:

[(1, 201612220), (2, 100806110), (4, 50403055), (5, 40322444), (10, 20161222), (20, 10080611), (31, 6503620), (62, 3251810), (124, 1625905), (155, 1300724), (310, 650362), (620, 325181)]