80778518

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1\times {\mathrm{2129}}^1$

素因数の和:2503

約数の個数: 16

約数和(自身を含む): 123608160

約数和(自身を除く): 42829642

約数列:

[1, 2, 61, 122, 311, 622, 2129, 4258, 18971, 37942, 129869, 259738, 662119, 1324238, 40389259, 80778518]

約数ペア:

[(1, 80778518), (2, 40389259), (61, 1324238), (122, 662119), (311, 259738), (622, 129869), (2129, 37942), (4258, 18971)]