128539558

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 224421120

約数和(自身を除く): 95881562

約数列:

[1, 2, 7, 14, 109, 131, 218, 262, 643, 763, 917, 1286, 1526, 1834, 4501, 9002, 14279, 28558, 70087, 84233, 99953, 140174, 168466, 199906, 490609, 589631, 981218, 1179262, 9181397, 18362794, 64269779, 128539558]

約数ペア:

[(1, 128539558), (2, 64269779), (7, 18362794), (14, 9181397), (109, 1179262), (131, 981218), (218, 589631), (262, 490609), (643, 199906), (763, 168466), (917, 140174), (1286, 99953), (1526, 84233), (1834, 70087), (4501, 28558), (9002, 14279)]