81930440

素因数分解:

$2^3\times 5^1\times {\mathrm{2048261}}^1$

素因数の和:2048272

約数の個数: 16

約数和(自身を含む): 184343580

約数和(自身を除く): 102413140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2048261, 4096522, 8193044, 10241305, 16386088, 20482610, 40965220, 81930440]

約数ペア:

[(1, 81930440), (2, 40965220), (4, 20482610), (5, 16386088), (8, 10241305), (10, 8193044), (20, 4096522), (40, 2048261)]