1380604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 2600640

約数和(自身を除く): 1220036

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 257, 316, 514, 1028, 1343, 2686, 4369, 5372, 8738, 17476, 20303, 40606, 81212, 345151, 690302, 1380604]

約数ペア:

[(1, 1380604), (2, 690302), (4, 345151), (17, 81212), (34, 40606), (68, 20303), (79, 17476), (158, 8738), (257, 5372), (316, 4369), (514, 2686), (1028, 1343)]