204590800

素因数分解:

$2^4\times 5^2\times {\mathrm{511477}}^1$

素因数の和:511495

約数の個数: 30

約数和(自身を含む): 491530358

約数和(自身を除く): 286939558

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 511477, 1022954, 2045908, 2557385, 4091816, 5114770, 8183632, 10229540, 12786925, 20459080, 25573850, 40918160, 51147700, 102295400, 204590800]

約数ペア:

[(1, 204590800), (2, 102295400), (4, 51147700), (5, 40918160), (8, 25573850), (10, 20459080), (16, 12786925), (20, 10229540), (25, 8183632), (40, 5114770), (50, 4091816), (80, 2557385), (100, 2045908), (200, 1022954), (400, 511477)]