40012816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{80671}}^1$

素因数の和:80710

約数の個数: 20

約数和(自身を含む): 80026624

約数和(自身を除く): 40013808

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 80671, 161342, 322684, 645368, 1290736, 2500801, 5001602, 10003204, 20006408, 40012816]

約数ペア:

[(1, 40012816), (2, 20006408), (4, 10003204), (8, 5001602), (16, 2500801), (31, 1290736), (62, 645368), (124, 322684), (248, 161342), (496, 80671)]