65372020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2213}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 157707648

約数和(自身を除く): 92335628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2213, 2954, 4220, 4426, 5908, 7385, 8852, 11065, 14770, 15491, 22130, 29540, 30982, 44260, 61964, 77455, 154910, 309820, 466943, 933886, 1867772, 2334715, 3268601, 4669430, 6537202, 9338860, 13074404, 16343005, 32686010, 65372020]

約数ペア:

[(1, 65372020), (2, 32686010), (4, 16343005), (5, 13074404), (7, 9338860), (10, 6537202), (14, 4669430), (20, 3268601), (28, 2334715), (35, 1867772), (70, 933886), (140, 466943), (211, 309820), (422, 154910), (844, 77455), (1055, 61964), (1477, 44260), (2110, 30982), (2213, 29540), (2954, 22130), (4220, 15491), (4426, 14770), (5908, 11065), (7385, 8852)]