61570625

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 82473600

約数和(自身を除く): 20902975

約数列:

[1, 5, 25, 29, 43, 79, 125, 145, 215, 395, 625, 725, 1075, 1247, 1975, 2291, 3397, 3625, 5375, 6235, 9875, 11455, 16985, 18125, 26875, 31175, 49375, 57275, 84925, 98513, 155875, 286375, 424625, 492565, 779375, 1431875, 2123125, 2462825, 12314125, 61570625]

約数ペア:

[(1, 61570625), (5, 12314125), (25, 2462825), (29, 2123125), (43, 1431875), (79, 779375), (125, 492565), (145, 424625), (215, 286375), (395, 155875), (625, 98513), (725, 84925), (1075, 57275), (1247, 49375), (1975, 31175), (2291, 26875), (3397, 18125), (3625, 16985), (5375, 11455), (6235, 9875)]