20921260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45481}}^1$

素因数の和:45513

約数の個数: 24

約数和(自身を含む): 45845856

約数和(自身を除く): 24924596

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45481, 90962, 181924, 227405, 454810, 909620, 1046063, 2092126, 4184252, 5230315, 10460630, 20921260]

約数ペア:

[(1, 20921260), (2, 10460630), (4, 5230315), (5, 4184252), (10, 2092126), (20, 1046063), (23, 909620), (46, 454810), (92, 227405), (115, 181924), (230, 90962), (460, 45481)]