20441560

素因数分解:

$2^3\times 5^1\times {\mathrm{511039}}^1$

素因数の和:511050

約数の個数: 16

約数和(自身を含む): 45993600

約数和(自身を除く): 25552040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511039, 1022078, 2044156, 2555195, 4088312, 5110390, 10220780, 20441560]

約数ペア:

[(1, 20441560), (2, 10220780), (4, 5110390), (5, 4088312), (8, 2555195), (10, 2044156), (20, 1022078), (40, 511039)]