55125820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{38821}}^1$

素因数の和:38901

約数の個数: 24

約数和(自身を含む): 117397728

約数和(自身を除く): 62271908

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 38821, 77642, 155284, 194105, 388210, 776420, 2756291, 5512582, 11025164, 13781455, 27562910, 55125820]

約数ペア:

[(1, 55125820), (2, 27562910), (4, 13781455), (5, 11025164), (10, 5512582), (20, 2756291), (71, 776420), (142, 388210), (284, 194105), (355, 155284), (710, 77642), (1420, 38821)]