13980440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1931}}^1$

素因数の和:2123

約数の個数: 32

約数和(自身を含む): 31646160

約数和(自身を除く): 17665720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 1931, 3620, 3862, 7240, 7724, 9655, 15448, 19310, 38620, 77240, 349511, 699022, 1398044, 1747555, 2796088, 3495110, 6990220, 13980440]

約数ペア:

[(1, 13980440), (2, 6990220), (4, 3495110), (5, 2796088), (8, 1747555), (10, 1398044), (20, 699022), (40, 349511), (181, 77240), (362, 38620), (724, 19310), (905, 15448), (1448, 9655), (1810, 7724), (1931, 7240), (3620, 3862)]