205126067980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{68834251}}^1$

素因数の和:68834409

約数の個数: 24

約数和(自身を含む): 433655787600

約数和(自身を除く): 228529719620

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 68834251, 137668502, 275337004, 344171255, 688342510, 1376685020, 10256303399, 20512606798, 41025213596, 51281516995, 102563033990, 205126067980]

約数ペア:

[(1, 205126067980), (2, 102563033990), (4, 51281516995), (5, 41025213596), (10, 20512606798), (20, 10256303399), (149, 1376685020), (298, 688342510), (596, 344171255), (745, 275337004), (1490, 137668502), (2980, 68834251)]