18056920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64489}}^1$

素因数の和:64507

約数の個数: 32

約数和(自身を含む): 46432800

約数和(自身を除く): 28375880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64489, 128978, 257956, 322445, 451423, 515912, 644890, 902846, 1289780, 1805692, 2257115, 2579560, 3611384, 4514230, 9028460, 18056920]

約数ペア:

[(1, 18056920), (2, 9028460), (4, 4514230), (5, 3611384), (7, 2579560), (8, 2257115), (10, 1805692), (14, 1289780), (20, 902846), (28, 644890), (35, 515912), (40, 451423), (56, 322445), (70, 257956), (140, 128978), (280, 64489)]