640668997

素因数分解:

${\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{1213}}^1$

素因数の和:1500

約数の個数: 16

約数和(自身を含む): 669195648

約数和(自身を除く): 28526651

約数列:

[1, 43, 71, 173, 1213, 3053, 7439, 12283, 52159, 86123, 209849, 528169, 3703289, 9023507, 14899279, 640668997]

約数ペア:

[(1, 640668997), (43, 14899279), (71, 9023507), (173, 3703289), (1213, 528169), (3053, 209849), (7439, 86123), (12283, 52159)]