13211920

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:943

約数の個数: 40

約数和(自身を含む): 30890880

約数和(自身を除く): 17678960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 691, 956, 1195, 1382, 1912, 2390, 2764, 3455, 3824, 4780, 5528, 6910, 9560, 11056, 13820, 19120, 27640, 55280, 165149, 330298, 660596, 825745, 1321192, 1651490, 2642384, 3302980, 6605960, 13211920]

約数ペア:

[(1, 13211920), (2, 6605960), (4, 3302980), (5, 2642384), (8, 1651490), (10, 1321192), (16, 825745), (20, 660596), (40, 330298), (80, 165149), (239, 55280), (478, 27640), (691, 19120), (956, 13820), (1195, 11056), (1382, 9560), (1912, 6910), (2390, 5528), (2764, 4780), (3455, 3824)]