20807521075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{587}}^1\times {\mathrm{1553}}^1$

素因数の和:2244

約数の個数: 48

約数和(自身を含む): 28552922496

約数和(自身を除く): 7745401421

約数列:

[1, 5, 11, 25, 55, 83, 275, 415, 587, 913, 1553, 2075, 2935, 4565, 6457, 7765, 14675, 17083, 22825, 32285, 38825, 48721, 85415, 128899, 161425, 243605, 427075, 535931, 644495, 911611, 1218025, 1417889, 2679655, 3222475, 4558055, 7089445, 10027721, 13398275, 22790275, 35447225, 50138605, 75663713, 250693025, 378318565, 832300843, 1891592825, 4161504215, 20807521075]

約数ペア:

[(1, 20807521075), (5, 4161504215), (11, 1891592825), (25, 832300843), (55, 378318565), (83, 250693025), (275, 75663713), (415, 50138605), (587, 35447225), (913, 22790275), (1553, 13398275), (2075, 10027721), (2935, 7089445), (4565, 4558055), (6457, 3222475), (7765, 2679655), (14675, 1417889), (17083, 1218025), (22825, 911611), (32285, 644495), (38825, 535931), (48721, 427075), (85415, 243605), (128899, 161425)]