397020625

素因数分解:

$5^4\times {\mathrm{439}}^1\times {\mathrm{1447}}^1$

素因数の和:1906

約数の個数: 20

約数和(自身を含む): 497590720

約数和(自身を除く): 100570095

約数列:

[1, 5, 25, 125, 439, 625, 1447, 2195, 7235, 10975, 36175, 54875, 180875, 274375, 635233, 904375, 3176165, 15880825, 79404125, 397020625]

約数ペア:

[(1, 397020625), (5, 79404125), (25, 15880825), (125, 3176165), (439, 904375), (625, 635233), (1447, 274375), (2195, 180875), (7235, 54875), (10975, 36175)]