205120820

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{18413}}^1$

素因数の和:18979

約数の個数: 24

約数和(自身を含む): 431550504

約数和(自身を除く): 226429684

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 11140, 18413, 36826, 73652, 92065, 184130, 368260, 10256041, 20512082, 41024164, 51280205, 102560410, 205120820]

約数ペア:

[(1, 205120820), (2, 102560410), (4, 51280205), (5, 41024164), (10, 20512082), (20, 10256041), (557, 368260), (1114, 184130), (2228, 92065), (2785, 73652), (5570, 36826), (11140, 18413)]