20965540

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3167}}^1$

素因数の和:3507

約数の個数: 24

約数和(自身を含む): 44174592

約数和(自身を除く): 23209052

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3167, 3310, 6334, 6620, 12668, 15835, 31670, 63340, 1048277, 2096554, 4193108, 5241385, 10482770, 20965540]

約数ペア:

[(1, 20965540), (2, 10482770), (4, 5241385), (5, 4193108), (10, 2096554), (20, 1048277), (331, 63340), (662, 31670), (1324, 15835), (1655, 12668), (3167, 6620), (3310, 6334)]