68090020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 146386800

約数和(自身を除く): 78296780

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 149, 292, 298, 313, 365, 596, 626, 730, 745, 1252, 1460, 1490, 1565, 2980, 3130, 6260, 10877, 21754, 22849, 43508, 45698, 46637, 54385, 91396, 93274, 108770, 114245, 186548, 217540, 228490, 233185, 456980, 466370, 932740, 3404501, 6809002, 13618004, 17022505, 34045010, 68090020]

約数ペア:

[(1, 68090020), (2, 34045010), (4, 17022505), (5, 13618004), (10, 6809002), (20, 3404501), (73, 932740), (146, 466370), (149, 456980), (292, 233185), (298, 228490), (313, 217540), (365, 186548), (596, 114245), (626, 108770), (730, 93274), (745, 91396), (1252, 54385), (1460, 46637), (1490, 45698), (1565, 43508), (2980, 22849), (3130, 21754), (6260, 10877)]