561931460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1478767}}^1$

素因数の和:1478795

約数の個数: 24

約数和(自身を含む): 1242165120

約数和(自身を除く): 680233660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1478767, 2957534, 5915068, 7393835, 14787670, 28096573, 29575340, 56193146, 112386292, 140482865, 280965730, 561931460]

約数ペア:

[(1, 561931460), (2, 280965730), (4, 140482865), (5, 112386292), (10, 56193146), (19, 29575340), (20, 28096573), (38, 14787670), (76, 7393835), (95, 5915068), (190, 2957534), (380, 1478767)]