628623880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{365479}}^1$

素因数の和:365533

約数の個数: 32

約数和(自身を含む): 1447300800

約数和(自身を除く): 818676920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 365479, 730958, 1461916, 1827395, 2923832, 3654790, 7309580, 14619160, 15715597, 31431194, 62862388, 78577985, 125724776, 157155970, 314311940, 628623880]

約数ペア:

[(1, 628623880), (2, 314311940), (4, 157155970), (5, 125724776), (8, 78577985), (10, 62862388), (20, 31431194), (40, 15715597), (43, 14619160), (86, 7309580), (172, 3654790), (215, 2923832), (344, 1827395), (430, 1461916), (860, 730958), (1720, 365479)]