260018320

素因数分解:

$2^4\times 5^1\times {\mathrm{3250229}}^1$

素因数の和:3250242

約数の個数: 20

約数和(自身を含む): 604542780

約数和(自身を除く): 344524460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3250229, 6500458, 13000916, 16251145, 26001832, 32502290, 52003664, 65004580, 130009160, 260018320]

約数ペア:

[(1, 260018320), (2, 130009160), (4, 65004580), (5, 52003664), (8, 32502290), (10, 26001832), (16, 16251145), (20, 13000916), (40, 6500458), (80, 3250229)]