248601555

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19801}}^1$

素因数の和:19849

約数の個数: 40

約数和(自身を含む): 460040064

約数和(自身を除く): 211438509

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 279, 405, 465, 837, 1395, 2511, 4185, 12555, 19801, 59403, 99005, 178209, 297015, 534627, 613831, 891045, 1603881, 1841493, 2673135, 3069155, 5524479, 8019405, 9207465, 16573437, 27622395, 49720311, 82867185, 248601555]

約数ペア:

[(1, 248601555), (3, 82867185), (5, 49720311), (9, 27622395), (15, 16573437), (27, 9207465), (31, 8019405), (45, 5524479), (81, 3069155), (93, 2673135), (135, 1841493), (155, 1603881), (279, 891045), (405, 613831), (465, 534627), (837, 297015), (1395, 178209), (2511, 99005), (4185, 59403), (12555, 19801)]