42561250

素因数分解:

$2^1\times 5^4\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:532

約数の個数: 40

約数和(自身を含む): 80974080

約数和(自身を除く): 38412830

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 431, 625, 790, 862, 1250, 1975, 2155, 3950, 4310, 9875, 10775, 19750, 21550, 34049, 49375, 53875, 68098, 98750, 107750, 170245, 269375, 340490, 538750, 851225, 1702450, 4256125, 8512250, 21280625, 42561250]

約数ペア:

[(1, 42561250), (2, 21280625), (5, 8512250), (10, 4256125), (25, 1702450), (50, 851225), (79, 538750), (125, 340490), (158, 269375), (250, 170245), (395, 107750), (431, 98750), (625, 68098), (790, 53875), (862, 49375), (1250, 34049), (1975, 21550), (2155, 19750), (3950, 10775), (4310, 9875)]