20157740920

素因数分解:

$2^3\times 5^1\times {\mathrm{503943523}}^1$

素因数の和:503943534

約数の個数: 16

約数和(自身を含む): 45354917160

約数和(自身を除く): 25197176240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503943523, 1007887046, 2015774092, 2519717615, 4031548184, 5039435230, 10078870460, 20157740920]

約数ペア:

[(1, 20157740920), (2, 10078870460), (4, 5039435230), (5, 4031548184), (8, 2519717615), (10, 2015774092), (20, 1007887046), (40, 503943523)]