2661733240

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{478729}}^1$

素因数の和:478879

約数の個数: 32

約数和(自身を含む): 6031998000

約数和(自身を除く): 3370264760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 478729, 957458, 1914916, 2393645, 3829832, 4787290, 9574580, 19149160, 66543331, 133086662, 266173324, 332716655, 532346648, 665433310, 1330866620, 2661733240]

約数ペア:

[(1, 2661733240), (2, 1330866620), (4, 665433310), (5, 532346648), (8, 332716655), (10, 266173324), (20, 133086662), (40, 66543331), (139, 19149160), (278, 9574580), (556, 4787290), (695, 3829832), (1112, 2393645), (1390, 1914916), (2780, 957458), (5560, 478729)]