20367080

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1063}}^1$

素因数の和:1553

約数の個数: 32

約数和(自身を含む): 45964800

約数和(自身を除く): 25597720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1063, 1916, 2126, 2395, 3832, 4252, 4790, 5315, 8504, 9580, 10630, 19160, 21260, 42520, 509177, 1018354, 2036708, 2545885, 4073416, 5091770, 10183540, 20367080]

約数ペア:

[(1, 20367080), (2, 10183540), (4, 5091770), (5, 4073416), (8, 2545885), (10, 2036708), (20, 1018354), (40, 509177), (479, 42520), (958, 21260), (1063, 19160), (1916, 10630), (2126, 9580), (2395, 8504), (3832, 5315), (4252, 4790)]