81251216

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{46589}}^1$

素因数の和:46706

約数の個数: 20

約数和(自身を含む): 158871900

約数和(自身を除く): 77620684

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 46589, 93178, 186356, 372712, 745424, 5078201, 10156402, 20312804, 40625608, 81251216]

約数ペア:

[(1, 81251216), (2, 40625608), (4, 20312804), (8, 10156402), (16, 5078201), (109, 745424), (218, 372712), (436, 186356), (872, 93178), (1744, 46589)]