77419640

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2801}}^1$

素因数の和:3503

約数の個数: 32

約数和(自身を含む): 174508560

約数和(自身を除く): 97088920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 2801, 3455, 5528, 5602, 6910, 11204, 13820, 14005, 22408, 27640, 28010, 56020, 112040, 1935491, 3870982, 7741964, 9677455, 15483928, 19354910, 38709820, 77419640]

約数ペア:

[(1, 77419640), (2, 38709820), (4, 19354910), (5, 15483928), (8, 9677455), (10, 7741964), (20, 3870982), (40, 1935491), (691, 112040), (1382, 56020), (2764, 28010), (2801, 27640), (3455, 22408), (5528, 14005), (5602, 13820), (6910, 11204)]