25773320

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2293}}^1$

素因数の和:2585

約数の個数: 32

約数和(自身を含む): 58221720

約数和(自身を除く): 32448400

約数列:

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

約数ペア:

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