66486760

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3331}}^1$

素因数の和:3841

約数の個数: 32

約数和(自身を含む): 149940000

約数和(自身を除く): 83453240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3331, 3992, 4990, 6662, 9980, 13324, 16655, 19960, 26648, 33310, 66620, 133240, 1662169, 3324338, 6648676, 8310845, 13297352, 16621690, 33243380, 66486760]

約数ペア:

[(1, 66486760), (2, 33243380), (4, 16621690), (5, 13297352), (8, 8310845), (10, 6648676), (20, 3324338), (40, 1662169), (499, 133240), (998, 66620), (1996, 33310), (2495, 26648), (3331, 19960), (3992, 16655), (4990, 13324), (6662, 9980)]