81178480

素因数分解:

$2^4\times 5^1\times {\mathrm{1014731}}^1$

素因数の和:1014744

約数の個数: 20

約数和(自身を含む): 188740152

約数和(自身を除く): 107561672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014731, 2029462, 4058924, 5073655, 8117848, 10147310, 16235696, 20294620, 40589240, 81178480]

約数ペア:

[(1, 81178480), (2, 40589240), (4, 20294620), (5, 16235696), (8, 10147310), (10, 8117848), (16, 5073655), (20, 4058924), (40, 2029462), (80, 1014731)]