2080782020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{698249}}^1$

素因数の和:698407

約数の個数: 24

約数和(自身を含む): 4398975000

約数和(自身を除く): 2318192980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 698249, 1396498, 2792996, 3491245, 6982490, 13964980, 104039101, 208078202, 416156404, 520195505, 1040391010, 2080782020]

約数ペア:

[(1, 2080782020), (2, 1040391010), (4, 520195505), (5, 416156404), (10, 208078202), (20, 104039101), (149, 13964980), (298, 6982490), (596, 3491245), (745, 2792996), (1490, 1396498), (2980, 698249)]