420145640

素因数分解:

$2^3\times 5^1\times {\mathrm{2309}}^1\times {\mathrm{4549}}^1$

素因数の和:6869

約数の個数: 32

約数和(自身を含む): 945945000

約数和(自身を除く): 525799360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2309, 4549, 4618, 9098, 9236, 11545, 18196, 18472, 22745, 23090, 36392, 45490, 46180, 90980, 92360, 181960, 10503641, 21007282, 42014564, 52518205, 84029128, 105036410, 210072820, 420145640]

約数ペア:

[(1, 420145640), (2, 210072820), (4, 105036410), (5, 84029128), (8, 52518205), (10, 42014564), (20, 21007282), (40, 10503641), (2309, 181960), (4549, 92360), (4618, 90980), (9098, 46180), (9236, 45490), (11545, 36392), (18196, 23090), (18472, 22745)]