394840496

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{2221}}^1$

素因数の和:2541

約数の個数: 40

約数和(自身を含む): 786907968

約数和(自身を除く): 392067472

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 271, 328, 542, 656, 1084, 2168, 2221, 4336, 4442, 8884, 11111, 17768, 22222, 35536, 44444, 88888, 91061, 177776, 182122, 364244, 601891, 728488, 1203782, 1456976, 2407564, 4815128, 9630256, 24677531, 49355062, 98710124, 197420248, 394840496]

約数ペア:

[(1, 394840496), (2, 197420248), (4, 98710124), (8, 49355062), (16, 24677531), (41, 9630256), (82, 4815128), (164, 2407564), (271, 1456976), (328, 1203782), (542, 728488), (656, 601891), (1084, 364244), (2168, 182122), (2221, 177776), (4336, 91061), (4442, 88888), (8884, 44444), (11111, 35536), (17768, 22222)]