64557615

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 105569280

約数和(自身を除く): 41011665

約数列:

[1, 3, 5, 15, 79, 157, 237, 347, 395, 471, 785, 1041, 1185, 1735, 2355, 5205, 12403, 27413, 37209, 54479, 62015, 82239, 137065, 163437, 186045, 272395, 411195, 817185, 4303841, 12911523, 21519205, 64557615]

約数ペア:

[(1, 64557615), (3, 21519205), (5, 12911523), (15, 4303841), (79, 817185), (157, 411195), (237, 272395), (347, 186045), (395, 163437), (471, 137065), (785, 82239), (1041, 62015), (1185, 54479), (1735, 37209), (2355, 27413), (5205, 12403)]