199908020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{26513}}^1$

素因数の和:26564

約数の個数: 48

約数和(自身を含む): 467706960

約数和(自身を除く): 267798940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 26513, 53026, 106052, 132565, 265130, 344669, 530260, 689338, 768877, 1378676, 1537754, 1723345, 3075508, 3446690, 3844385, 6893380, 7688770, 9995401, 15377540, 19990802, 39981604, 49977005, 99954010, 199908020]

約数ペア:

[(1, 199908020), (2, 99954010), (4, 49977005), (5, 39981604), (10, 19990802), (13, 15377540), (20, 9995401), (26, 7688770), (29, 6893380), (52, 3844385), (58, 3446690), (65, 3075508), (116, 1723345), (130, 1537754), (145, 1378676), (260, 768877), (290, 689338), (377, 530260), (580, 344669), (754, 265130), (1508, 132565), (1885, 106052), (3770, 53026), (7540, 26513)]