40398860

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{4217}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 85034880

約数和(自身を除く): 44636020

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4217, 4790, 8434, 9580, 16868, 21085, 42170, 84340, 2019943, 4039886, 8079772, 10099715, 20199430, 40398860]

約数ペア:

[(1, 40398860), (2, 20199430), (4, 10099715), (5, 8079772), (10, 4039886), (20, 2019943), (479, 84340), (958, 42170), (1916, 21085), (2395, 16868), (4217, 9580), (4790, 8434)]