20259880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11779}}^1$

素因数の和:11833

約数の個数: 32

約数和(自身を含む): 46648800

約数和(自身を除く): 26388920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11779, 23558, 47116, 58895, 94232, 117790, 235580, 471160, 506497, 1012994, 2025988, 2532485, 4051976, 5064970, 10129940, 20259880]

約数ペア:

[(1, 20259880), (2, 10129940), (4, 5064970), (5, 4051976), (8, 2532485), (10, 2025988), (20, 1012994), (40, 506497), (43, 471160), (86, 235580), (172, 117790), (215, 94232), (344, 58895), (430, 47116), (860, 23558), (1720, 11779)]