20988780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349813}}^1$

素因数の和:349825

約数の個数: 24

約数和(自身を含む): 58768752

約数和(自身を除く): 37779972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349813, 699626, 1049439, 1399252, 1749065, 2098878, 3498130, 4197756, 5247195, 6996260, 10494390, 20988780]

約数ペア:

[(1, 20988780), (2, 10494390), (3, 6996260), (4, 5247195), (5, 4197756), (6, 3498130), (10, 2098878), (12, 1749065), (15, 1399252), (20, 1049439), (30, 699626), (60, 349813)]