201431380

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{20023}}^1$

素因数の和:20535

約数の個数: 24

約数和(自身を含む): 423868032

約数和(自身を除く): 222436652

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 10060, 20023, 40046, 80092, 100115, 200230, 400460, 10071569, 20143138, 40286276, 50357845, 100715690, 201431380]

約数ペア:

[(1, 201431380), (2, 100715690), (4, 50357845), (5, 40286276), (10, 20143138), (20, 10071569), (503, 400460), (1006, 200230), (2012, 100115), (2515, 80092), (5030, 40046), (10060, 20023)]