13508020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 29494080

約数和(自身を除く): 15986060

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 113, 139, 172, 215, 226, 278, 430, 452, 556, 565, 695, 860, 1130, 1390, 2260, 2780, 4859, 5977, 9718, 11954, 15707, 19436, 23908, 24295, 29885, 31414, 48590, 59770, 62828, 78535, 97180, 119540, 157070, 314140, 675401, 1350802, 2701604, 3377005, 6754010, 13508020]

約数ペア:

[(1, 13508020), (2, 6754010), (4, 3377005), (5, 2701604), (10, 1350802), (20, 675401), (43, 314140), (86, 157070), (113, 119540), (139, 97180), (172, 78535), (215, 62828), (226, 59770), (278, 48590), (430, 31414), (452, 29885), (556, 24295), (565, 23908), (695, 19436), (860, 15707), (1130, 11954), (1390, 9718), (2260, 5977), (2780, 4859)]