129959920

素因数分解:

$2^4\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1489}}^1$

素因数の和:2593

約数の個数: 40

約数和(自身を含む): 302636880

約数和(自身を除く): 172676960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1091, 1489, 2182, 2978, 4364, 5455, 5956, 7445, 8728, 10910, 11912, 14890, 17456, 21820, 23824, 29780, 43640, 59560, 87280, 119120, 1624499, 3248998, 6497996, 8122495, 12995992, 16244990, 25991984, 32489980, 64979960, 129959920]

約数ペア:

[(1, 129959920), (2, 64979960), (4, 32489980), (5, 25991984), (8, 16244990), (10, 12995992), (16, 8122495), (20, 6497996), (40, 3248998), (80, 1624499), (1091, 119120), (1489, 87280), (2182, 59560), (2978, 43640), (4364, 29780), (5455, 23824), (5956, 21820), (7445, 17456), (8728, 14890), (10910, 11912)]