19758880

素因数分解:

$2^5\times 5^1\times {\mathrm{123493}}^1$

素因数の和:123508

約数の個数: 24

約数和(自身を含む): 46680732

約数和(自身を除く): 26921852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123493, 246986, 493972, 617465, 987944, 1234930, 1975888, 2469860, 3951776, 4939720, 9879440, 19758880]

約数ペア:

[(1, 19758880), (2, 9879440), (4, 4939720), (5, 3951776), (8, 2469860), (10, 1975888), (16, 1234930), (20, 987944), (32, 617465), (40, 493972), (80, 246986), (160, 123493)]