7812980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{55807}}^1$

素因数の和:55823

約数の個数: 24

約数和(自身を含む): 18751488

約数和(自身を除く): 10938508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 55807, 111614, 223228, 279035, 390649, 558070, 781298, 1116140, 1562596, 1953245, 3906490, 7812980]

約数ペア:

[(1, 7812980), (2, 3906490), (4, 1953245), (5, 1562596), (7, 1116140), (10, 781298), (14, 558070), (20, 390649), (28, 279035), (35, 223228), (70, 111614), (140, 55807)]