81980638

素因数分解:

$2^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1\times {\mathrm{677}}^1$

素因数の和:1187

約数の個数: 16

約数和(自身を含む): 124187904

約数和(自身を除く): 42207266

約数列:

[1, 2, 191, 317, 382, 634, 677, 1354, 60547, 121094, 129307, 214609, 258614, 429218, 40990319, 81980638]

約数ペア:

[(1, 81980638), (2, 40990319), (191, 429218), (317, 258614), (382, 214609), (634, 129307), (677, 121094), (1354, 60547)]