228915662980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3559}}^1\times {\mathrm{40709}}^1$

素因数の和:44356

約数の個数: 48

約数和(自身を含む): 486956736000

約数和(自身を除く): 258041073020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 3559, 7118, 14236, 17795, 35590, 40709, 71180, 81418, 162836, 203545, 281161, 407090, 562322, 814180, 1124644, 1405805, 2811610, 3216011, 5623220, 6432022, 12864044, 16080055, 32160110, 64320220, 144883331, 289766662, 579533324, 724416655, 1448833310, 2897666620, 11445783149, 22891566298, 45783132596, 57228915745, 114457831490, 228915662980]

約数ペア:

[(1, 228915662980), (2, 114457831490), (4, 57228915745), (5, 45783132596), (10, 22891566298), (20, 11445783149), (79, 2897666620), (158, 1448833310), (316, 724416655), (395, 579533324), (790, 289766662), (1580, 144883331), (3559, 64320220), (7118, 32160110), (14236, 16080055), (17795, 12864044), (35590, 6432022), (40709, 5623220), (71180, 3216011), (81418, 2811610), (162836, 1405805), (203545, 1124644), (281161, 814180), (407090, 562322)]