812587780

素因数分解:

$2^2\times 5^1\times {\mathrm{6269}}^1\times {\mathrm{6481}}^1$

素因数の和:12759

約数の個数: 24

約数和(自身を含む): 1706969880

約数和(自身を除く): 894382100

約数列:

[1, 2, 4, 5, 10, 20, 6269, 6481, 12538, 12962, 25076, 25924, 31345, 32405, 62690, 64810, 125380, 129620, 40629389, 81258778, 162517556, 203146945, 406293890, 812587780]

約数ペア:

[(1, 812587780), (2, 406293890), (4, 203146945), (5, 162517556), (10, 81258778), (20, 40629389), (6269, 129620), (6481, 125380), (12538, 64810), (12962, 62690), (25076, 32405), (25924, 31345)]