520035920

素因数分解:

$2^4\times 5^1\times {\mathrm{6500449}}^1$

素因数の和:6500462

約数の個数: 20

約数和(自身を含む): 1209083700

約数和(自身を除く): 689047780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6500449, 13000898, 26001796, 32502245, 52003592, 65004490, 104007184, 130008980, 260017960, 520035920]

約数ペア:

[(1, 520035920), (2, 260017960), (4, 130008980), (5, 104007184), (8, 65004490), (10, 52003592), (16, 32502245), (20, 26001796), (40, 13000898), (80, 6500449)]