643376974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 1028712960

約数和(自身を除く): 385335986

約数列:

[1, 2, 19, 38, 163, 241, 326, 431, 482, 862, 3097, 4579, 6194, 8189, 9158, 16378, 39283, 70253, 78566, 103871, 140506, 207742, 746377, 1334807, 1492754, 1973549, 2669614, 3947098, 16930973, 33861946, 321688487, 643376974]

約数ペア:

[(1, 643376974), (2, 321688487), (19, 33861946), (38, 16930973), (163, 3947098), (241, 2669614), (326, 1973549), (431, 1492754), (482, 1334807), (862, 746377), (3097, 207742), (4579, 140506), (6194, 103871), (8189, 78566), (9158, 70253), (16378, 39283)]