72180560

素因数分解:

$2^4\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1091}}^1$

素因数の和:1931

約数の個数: 40

約数和(自身を含む): 168176736

約数和(自身を除く): 95996176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 827, 1091, 1654, 2182, 3308, 4135, 4364, 5455, 6616, 8270, 8728, 10910, 13232, 16540, 17456, 21820, 33080, 43640, 66160, 87280, 902257, 1804514, 3609028, 4511285, 7218056, 9022570, 14436112, 18045140, 36090280, 72180560]

約数ペア:

[(1, 72180560), (2, 36090280), (4, 18045140), (5, 14436112), (8, 9022570), (10, 7218056), (16, 4511285), (20, 3609028), (40, 1804514), (80, 902257), (827, 87280), (1091, 66160), (1654, 43640), (2182, 33080), (3308, 21820), (4135, 17456), (4364, 16540), (5455, 13232), (6616, 10910), (8270, 8728)]