261389600638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{87071819}}^1$

素因数の和:87071919

約数の個数: 16

約数和(自身を含む): 417944736000

約数和(自身を除く): 156555135362

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 87071819, 174143638, 1654364561, 3308729122, 6878673701, 13757347402, 130694800319, 261389600638]

約数ペア:

[(1, 261389600638), (2, 130694800319), (19, 13757347402), (38, 6878673701), (79, 3308729122), (158, 1654364561), (1501, 174143638), (3002, 87071819)]