64157920

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1427}}^1$

素因数の和:1723

約数の個数: 48

約数和(自身を含む): 152219088

約数和(自身を除く): 88061168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 562, 1124, 1405, 1427, 2248, 2810, 2854, 4496, 5620, 5708, 7135, 8992, 11240, 11416, 14270, 22480, 22832, 28540, 44960, 45664, 57080, 114160, 228320, 400987, 801974, 1603948, 2004935, 3207896, 4009870, 6415792, 8019740, 12831584, 16039480, 32078960, 64157920]

約数ペア:

[(1, 64157920), (2, 32078960), (4, 16039480), (5, 12831584), (8, 8019740), (10, 6415792), (16, 4009870), (20, 3207896), (32, 2004935), (40, 1603948), (80, 801974), (160, 400987), (281, 228320), (562, 114160), (1124, 57080), (1405, 45664), (1427, 44960), (2248, 28540), (2810, 22832), (2854, 22480), (4496, 14270), (5620, 11416), (5708, 11240), (7135, 8992)]