20121223190

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3862039}}^1$

素因数の和:3862567

約数の個数: 16

約数和(自身を含む): 36287727840

約数和(自身を除く): 16166504650

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 3862039, 7724078, 19310195, 38620390, 2012122319, 4024244638, 10060611595, 20121223190]

約数ペア:

[(1, 20121223190), (2, 10060611595), (5, 4024244638), (10, 2012122319), (521, 38620390), (1042, 19310195), (2605, 7724078), (5210, 3862039)]