1328780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 36

約数和(自身を含む): 2926560

約数和(自身を除く): 1597780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 841, 1580, 1682, 2291, 3364, 4205, 4582, 8410, 9164, 11455, 16820, 22910, 45820, 66439, 132878, 265756, 332195, 664390, 1328780]

約数ペア:

[(1, 1328780), (2, 664390), (4, 332195), (5, 265756), (10, 132878), (20, 66439), (29, 45820), (58, 22910), (79, 16820), (116, 11455), (145, 9164), (158, 8410), (290, 4582), (316, 4205), (395, 3364), (580, 2291), (790, 1682), (841, 1580)]