20407742900

素因数分解:

$2^2\times 5^2\times {\mathrm{797}}^1\times {\mathrm{256057}}^1$

素因数の和:256868

約数の個数: 36

約数和(自身を含む): 44340539628

約数和(自身を除く): 23932796728

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 797, 1594, 3188, 3985, 7970, 15940, 19925, 39850, 79700, 256057, 512114, 1024228, 1280285, 2560570, 5121140, 6401425, 12802850, 25605700, 204077429, 408154858, 816309716, 1020387145, 2040774290, 4081548580, 5101935725, 10203871450, 20407742900]

約数ペア:

[(1, 20407742900), (2, 10203871450), (4, 5101935725), (5, 4081548580), (10, 2040774290), (20, 1020387145), (25, 816309716), (50, 408154858), (100, 204077429), (797, 25605700), (1594, 12802850), (3188, 6401425), (3985, 5121140), (7970, 2560570), (15940, 1280285), (19925, 1024228), (39850, 512114), (79700, 256057)]