12980816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{26171}}^1$

素因数の和:26210

約数の個数: 20

約数和(自身を含む): 25962624

約数和(自身を除く): 12981808

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 26171, 52342, 104684, 209368, 418736, 811301, 1622602, 3245204, 6490408, 12980816]

約数ペア:

[(1, 12980816), (2, 6490408), (4, 3245204), (8, 1622602), (16, 811301), (31, 418736), (62, 209368), (124, 104684), (248, 52342), (496, 26171)]