51546640

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2293}}^1$

素因数の和:2587

約数の個数: 40

約数和(自身を含む): 120324888

約数和(自身を除く): 68778248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2293, 2810, 4496, 4586, 5620, 9172, 11240, 11465, 18344, 22480, 22930, 36688, 45860, 91720, 183440, 644333, 1288666, 2577332, 3221665, 5154664, 6443330, 10309328, 12886660, 25773320, 51546640]

約数ペア:

[(1, 51546640), (2, 25773320), (4, 12886660), (5, 10309328), (8, 6443330), (10, 5154664), (16, 3221665), (20, 2577332), (40, 1288666), (80, 644333), (281, 183440), (562, 91720), (1124, 45860), (1405, 36688), (2248, 22930), (2293, 22480), (2810, 18344), (4496, 11465), (4586, 11240), (5620, 9172)]