401800000018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{4759}}^1\times {\mathrm{2221829}}^1$

素因数の和:2226609

約数の個数: 16

約数和(自身を含む): 634554648000

約数和(自身を除く): 232754647982

約数列:

[1, 2, 19, 38, 4759, 9518, 90421, 180842, 2221829, 4443658, 42214751, 84429502, 10573684211, 21147368422, 200900000009, 401800000018]

約数ペア:

[(1, 401800000018), (2, 200900000009), (19, 21147368422), (38, 10573684211), (4759, 84429502), (9518, 42214751), (90421, 4443658), (180842, 2221829)]