81108740

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{6427}}^1$

素因数の和:7067

約数の個数: 24

約数和(自身を含む): 170624832

約数和(自身を除く): 89516092

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 6427, 12620, 12854, 25708, 32135, 64270, 128540, 4055437, 8110874, 16221748, 20277185, 40554370, 81108740]

約数ペア:

[(1, 81108740), (2, 40554370), (4, 20277185), (5, 16221748), (10, 8110874), (20, 4055437), (631, 128540), (1262, 64270), (2524, 32135), (3155, 25708), (6310, 12854), (6427, 12620)]