131401870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1\times {\mathrm{761}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 244912896

約数和(自身を除く): 113511026

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 557, 761, 1114, 1522, 2785, 3805, 5570, 7610, 17267, 23591, 34534, 47182, 86335, 117955, 172670, 235910, 423877, 847754, 2119385, 4238770, 13140187, 26280374, 65700935, 131401870]

約数ペア:

[(1, 131401870), (2, 65700935), (5, 26280374), (10, 13140187), (31, 4238770), (62, 2119385), (155, 847754), (310, 423877), (557, 235910), (761, 172670), (1114, 117955), (1522, 86335), (2785, 47182), (3805, 34534), (5570, 23591), (7610, 17267)]