20735041640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7301071}}^1$

素因数の和:7301153

約数の個数: 32

約数和(自身を含む): 47310946560

約数和(自身を除く): 26575904920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7301071, 14602142, 29204284, 36505355, 58408568, 73010710, 146021420, 292042840, 518376041, 1036752082, 2073504164, 2591880205, 4147008328, 5183760410, 10367520820, 20735041640]

約数ペア:

[(1, 20735041640), (2, 10367520820), (4, 5183760410), (5, 4147008328), (8, 2591880205), (10, 2073504164), (20, 1036752082), (40, 518376041), (71, 292042840), (142, 146021420), (284, 73010710), (355, 58408568), (568, 36505355), (710, 29204284), (1420, 14602142), (2840, 7301071)]