20788660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{241}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 46347840

約数和(自身を除く): 25559180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 227, 241, 380, 454, 482, 908, 964, 1135, 1205, 2270, 2410, 4313, 4540, 4579, 4820, 8626, 9158, 17252, 18316, 21565, 22895, 43130, 45790, 54707, 86260, 91580, 109414, 218828, 273535, 547070, 1039433, 1094140, 2078866, 4157732, 5197165, 10394330, 20788660]

約数ペア:

[(1, 20788660), (2, 10394330), (4, 5197165), (5, 4157732), (10, 2078866), (19, 1094140), (20, 1039433), (38, 547070), (76, 273535), (95, 218828), (190, 109414), (227, 91580), (241, 86260), (380, 54707), (454, 45790), (482, 43130), (908, 22895), (964, 21565), (1135, 18316), (1205, 17252), (2270, 9158), (2410, 8626), (4313, 4820), (4540, 4579)]