20191880

素因数分解:

$2^3\times 5^1\times {\mathrm{504797}}^1$

素因数の和:504808

約数の個数: 16

約数和(自身を含む): 45431820

約数和(自身を除く): 25239940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504797, 1009594, 2019188, 2523985, 4038376, 5047970, 10095940, 20191880]

約数ペア:

[(1, 20191880), (2, 10095940), (4, 5047970), (5, 4038376), (8, 2523985), (10, 2019188), (20, 1009594), (40, 504797)]