318328525

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1811}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 404438400

約数和(自身を除く): 86109875

約数列:

[1, 5, 25, 79, 89, 395, 445, 1811, 1975, 2225, 7031, 9055, 35155, 45275, 143069, 161179, 175775, 715345, 805895, 3576725, 4029475, 12733141, 63665705, 318328525]

約数ペア:

[(1, 318328525), (5, 63665705), (25, 12733141), (79, 4029475), (89, 3576725), (395, 805895), (445, 715345), (1811, 175775), (1975, 161179), (2225, 143069), (7031, 45275), (9055, 35155)]