28578305

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 41361408

約数和(自身を除く): 12783103

約数列:

[1, 5, 7, 23, 35, 115, 131, 161, 271, 655, 805, 917, 1355, 1897, 3013, 4585, 6233, 9485, 15065, 21091, 31165, 35501, 43631, 105455, 177505, 218155, 248507, 816523, 1242535, 4082615, 5715661, 28578305]

約数ペア:

[(1, 28578305), (5, 5715661), (7, 4082615), (23, 1242535), (35, 816523), (115, 248507), (131, 218155), (161, 177505), (271, 105455), (655, 43631), (805, 35501), (917, 31165), (1355, 21091), (1897, 15065), (3013, 9485), (4585, 6233)]