25971820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6397}}^1$

素因数の和:6442

約数の個数: 48

約数和(自身を含む): 64491840

約数和(自身を除く): 38520020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 6397, 12794, 25588, 31985, 44779, 63970, 89558, 127940, 179116, 185513, 223895, 371026, 447790, 742052, 895580, 927565, 1298591, 1855130, 2597182, 3710260, 5194364, 6492955, 12985910, 25971820]

約数ペア:

[(1, 25971820), (2, 12985910), (4, 6492955), (5, 5194364), (7, 3710260), (10, 2597182), (14, 1855130), (20, 1298591), (28, 927565), (29, 895580), (35, 742052), (58, 447790), (70, 371026), (116, 223895), (140, 185513), (145, 179116), (203, 127940), (290, 89558), (406, 63970), (580, 44779), (812, 31985), (1015, 25588), (2030, 12794), (4060, 6397)]