51391880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29879}}^1$

素因数の和:29933

約数の個数: 32

約数和(自身を含む): 118324800

約数和(自身を除く): 66932920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 29879, 59758, 119516, 149395, 239032, 298790, 597580, 1195160, 1284797, 2569594, 5139188, 6423985, 10278376, 12847970, 25695940, 51391880]

約数ペア:

[(1, 51391880), (2, 25695940), (4, 12847970), (5, 10278376), (8, 6423985), (10, 5139188), (20, 2569594), (40, 1284797), (43, 1195160), (86, 597580), (172, 298790), (215, 239032), (344, 149395), (430, 119516), (860, 59758), (1720, 29879)]