19116020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12413}}^1$

素因数の和:12440

約数の個数: 48

約数和(自身を含む): 50053248

約数和(自身を除く): 30937228

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12413, 24826, 49652, 62065, 86891, 124130, 136543, 173782, 248260, 273086, 347564, 434455, 546172, 682715, 868910, 955801, 1365430, 1737820, 1911602, 2730860, 3823204, 4779005, 9558010, 19116020]

約数ペア:

[(1, 19116020), (2, 9558010), (4, 4779005), (5, 3823204), (7, 2730860), (10, 1911602), (11, 1737820), (14, 1365430), (20, 955801), (22, 868910), (28, 682715), (35, 546172), (44, 434455), (55, 347564), (70, 273086), (77, 248260), (110, 173782), (140, 136543), (154, 124130), (220, 86891), (308, 62065), (385, 49652), (770, 24826), (1540, 12413)]