206060020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{1249}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 442890000

約数和(自身を除く): 236829980

約数列:

[1, 2, 4, 5, 10, 20, 73, 113, 146, 226, 292, 365, 452, 565, 730, 1130, 1249, 1460, 2260, 2498, 4996, 6245, 8249, 12490, 16498, 24980, 32996, 41245, 82490, 91177, 141137, 164980, 182354, 282274, 364708, 455885, 564548, 705685, 911770, 1411370, 1823540, 2822740, 10303001, 20606002, 41212004, 51515005, 103030010, 206060020]

約数ペア:

[(1, 206060020), (2, 103030010), (4, 51515005), (5, 41212004), (10, 20606002), (20, 10303001), (73, 2822740), (113, 1823540), (146, 1411370), (226, 911770), (292, 705685), (365, 564548), (452, 455885), (565, 364708), (730, 282274), (1130, 182354), (1249, 164980), (1460, 141137), (2260, 91177), (2498, 82490), (4996, 41245), (6245, 32996), (8249, 24980), (12490, 16498)]