13111640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1811}}^1$

素因数の和:2003

約数の個数: 32

約数和(自身を含む): 29680560

約数和(自身を除く): 16568920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 1811, 3620, 3622, 7240, 7244, 9055, 14488, 18110, 36220, 72440, 327791, 655582, 1311164, 1638955, 2622328, 3277910, 6555820, 13111640]

約数ペア:

[(1, 13111640), (2, 6555820), (4, 3277910), (5, 2622328), (8, 1638955), (10, 1311164), (20, 655582), (40, 327791), (181, 72440), (362, 36220), (724, 18110), (905, 14488), (1448, 9055), (1810, 7244), (1811, 7240), (3620, 3622)]