28272500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 60

約数和(自身を含む): 63504672

約数和(自身を除く): 35232172

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 263, 430, 500, 526, 625, 860, 1052, 1075, 1250, 1315, 2150, 2500, 2630, 4300, 5260, 5375, 6575, 10750, 11309, 13150, 21500, 22618, 26300, 26875, 32875, 45236, 53750, 56545, 65750, 107500, 113090, 131500, 164375, 226180, 282725, 328750, 565450, 657500, 1130900, 1413625, 2827250, 5654500, 7068125, 14136250, 28272500]

約数ペア:

[(1, 28272500), (2, 14136250), (4, 7068125), (5, 5654500), (10, 2827250), (20, 1413625), (25, 1130900), (43, 657500), (50, 565450), (86, 328750), (100, 282725), (125, 226180), (172, 164375), (215, 131500), (250, 113090), (263, 107500), (430, 65750), (500, 56545), (526, 53750), (625, 45236), (860, 32875), (1052, 26875), (1075, 26300), (1250, 22618), (1315, 21500), (2150, 13150), (2500, 11309), (2630, 10750), (4300, 6575), (5260, 5375)]