859645580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{328109}}^1$

素因数の和:328249

約数の個数: 24

約数和(自身を含む): 1819041840

約数和(自身を除く): 959396260

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 328109, 656218, 1312436, 1640545, 3281090, 6562180, 42982279, 85964558, 171929116, 214911395, 429822790, 859645580]

約数ペア:

[(1, 859645580), (2, 429822790), (4, 214911395), (5, 171929116), (10, 85964558), (20, 42982279), (131, 6562180), (262, 3281090), (524, 1640545), (655, 1312436), (1310, 656218), (2620, 328109)]