68628980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490207}}^1$

素因数の和:490223

約数の個数: 24

約数和(自身を含む): 164709888

約数和(自身を除く): 96080908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490207, 980414, 1960828, 2451035, 3431449, 4902070, 6862898, 9804140, 13725796, 17157245, 34314490, 68628980]

約数ペア:

[(1, 68628980), (2, 34314490), (4, 17157245), (5, 13725796), (7, 9804140), (10, 6862898), (14, 4902070), (20, 3431449), (28, 2451035), (35, 1960828), (70, 980414), (140, 490207)]