20145942680

素因数分解:

$2^3\times 5^1\times {\mathrm{503648567}}^1$

素因数の和:503648578

約数の個数: 16

約数和(自身を含む): 45328371120

約数和(自身を除く): 25182428440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503648567, 1007297134, 2014594268, 2518242835, 4029188536, 5036485670, 10072971340, 20145942680]

約数ペア:

[(1, 20145942680), (2, 10072971340), (4, 5036485670), (5, 4029188536), (8, 2518242835), (10, 2014594268), (20, 1007297134), (40, 503648567)]