401553620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1544437}}^1$

素因数の和:1544459

約数の個数: 24

約数和(自身を含む): 908129544

約数和(自身を除く): 506575924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1544437, 3088874, 6177748, 7722185, 15444370, 20077681, 30888740, 40155362, 80310724, 100388405, 200776810, 401553620]

約数ペア:

[(1, 401553620), (2, 200776810), (4, 100388405), (5, 80310724), (10, 40155362), (13, 30888740), (20, 20077681), (26, 15444370), (52, 7722185), (65, 6177748), (130, 3088874), (260, 1544437)]