81406672

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{12143}}^1$

素因数の和:12570

約数の個数: 20

約数和(自身を含む): 158114880

約数和(自身を除く): 76708208

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 3352, 6704, 12143, 24286, 48572, 97144, 194288, 5087917, 10175834, 20351668, 40703336, 81406672]

約数ペア:

[(1, 81406672), (2, 40703336), (4, 20351668), (8, 10175834), (16, 5087917), (419, 194288), (838, 97144), (1676, 48572), (3352, 24286), (6704, 12143)]