256225900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{52291}}^1$

素因数の和:52319

約数の個数: 54

約数和(自身を含む): 646799748

約数和(自身を除く): 390573848

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 52291, 104582, 209164, 261455, 366037, 522910, 732074, 1045820, 1307275, 1464148, 1830185, 2562259, 2614550, 3660370, 5124518, 5229100, 7320740, 9150925, 10249036, 12811295, 18301850, 25622590, 36603700, 51245180, 64056475, 128112950, 256225900]

約数ペア:

[(1, 256225900), (2, 128112950), (4, 64056475), (5, 51245180), (7, 36603700), (10, 25622590), (14, 18301850), (20, 12811295), (25, 10249036), (28, 9150925), (35, 7320740), (49, 5229100), (50, 5124518), (70, 3660370), (98, 2614550), (100, 2562259), (140, 1830185), (175, 1464148), (196, 1307275), (245, 1045820), (350, 732074), (490, 522910), (700, 366037), (980, 261455), (1225, 209164), (2450, 104582), (4900, 52291)]