643916980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4599407}}^1$

素因数の和:4599423

約数の個数: 24

約数和(自身を含む): 1545401088

約数和(自身を除く): 901484108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4599407, 9198814, 18397628, 22997035, 32195849, 45994070, 64391698, 91988140, 128783396, 160979245, 321958490, 643916980]

約数ペア:

[(1, 643916980), (2, 321958490), (4, 160979245), (5, 128783396), (7, 91988140), (10, 64391698), (14, 45994070), (20, 32195849), (28, 22997035), (35, 18397628), (70, 9198814), (140, 4599407)]