78876740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{55547}}^1$

素因数の和:55627

約数の個数: 24

約数和(自身を含む): 167977152

約数和(自身を除く): 89100412

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 55547, 111094, 222188, 277735, 555470, 1110940, 3943837, 7887674, 15775348, 19719185, 39438370, 78876740]

約数ペア:

[(1, 78876740), (2, 39438370), (4, 19719185), (5, 15775348), (10, 7887674), (20, 3943837), (71, 1110940), (142, 555470), (284, 277735), (355, 222188), (710, 111094), (1420, 55547)]