81254408

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{64693}}^1$

素因数の和:64856

約数の個数: 16

約数和(自身を含む): 153324780

約数和(自身を除く): 72070372

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 64693, 129386, 258772, 517544, 10156801, 20313602, 40627204, 81254408]

約数ペア:

[(1, 81254408), (2, 40627204), (4, 20313602), (8, 10156801), (157, 517544), (314, 258772), (628, 129386), (1256, 64693)]