20938570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{571}}^1$

素因数の和:790

約数の個数: 32

約数和(自身を含む): 39948480

約数和(自身を除く): 19009910

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 193, 386, 571, 965, 1142, 1930, 2855, 3667, 5710, 7334, 10849, 18335, 21698, 36670, 54245, 108490, 110203, 220406, 551015, 1102030, 2093857, 4187714, 10469285, 20938570]

約数ペア:

[(1, 20938570), (2, 10469285), (5, 4187714), (10, 2093857), (19, 1102030), (38, 551015), (95, 220406), (190, 110203), (193, 108490), (386, 54245), (571, 36670), (965, 21698), (1142, 18335), (1930, 10849), (2855, 7334), (3667, 5710)]