126557788

素因数分解:

$2^2\times 7^2\times {\mathrm{645703}}^1$

素因数の和:645721

約数の個数: 18

約数和(自身を含む): 257635896

約数和(自身を除く): 131078108

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 645703, 1291406, 2582812, 4519921, 9039842, 18079684, 31639447, 63278894, 126557788]

約数ペア:

[(1, 126557788), (2, 63278894), (4, 31639447), (7, 18079684), (14, 9039842), (28, 4519921), (49, 2582812), (98, 1291406), (196, 645703)]