81619798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^2\times {\mathrm{503}}^1$

素因数の和:676

約数の個数: 24

約数和(自身を含む): 133802928

約数和(自身を除く): 52183130

約数列:

[1, 2, 13, 26, 79, 158, 503, 1006, 1027, 2054, 6241, 6539, 12482, 13078, 39737, 79474, 81133, 162266, 516581, 1033162, 3139223, 6278446, 40809899, 81619798]

約数ペア:

[(1, 81619798), (2, 40809899), (13, 6278446), (26, 3139223), (79, 1033162), (158, 516581), (503, 162266), (1006, 81133), (1027, 79474), (2054, 39737), (6241, 13078), (6539, 12482)]