1289436620

素因数分解:

$2^2\times 5^1\times {\mathrm{3301}}^1\times {\mathrm{19531}}^1$

素因数の和:22841

約数の個数: 24

約数和(自身を含む): 2708775888

約数和(自身を除く): 1419339268

約数列:

[1, 2, 4, 5, 10, 20, 3301, 6602, 13204, 16505, 19531, 33010, 39062, 66020, 78124, 97655, 195310, 390620, 64471831, 128943662, 257887324, 322359155, 644718310, 1289436620]

約数ペア:

[(1, 1289436620), (2, 644718310), (4, 322359155), (5, 257887324), (10, 128943662), (20, 64471831), (3301, 390620), (6602, 195310), (13204, 97655), (16505, 78124), (19531, 66020), (33010, 39062)]