87805520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{883}}^1$

素因数の和:1020

約数の個数: 80

約数和(自身を含む): 224932032

約数和(自身を除く): 137126512

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 113, 176, 220, 226, 440, 452, 565, 880, 883, 904, 1130, 1243, 1766, 1808, 2260, 2486, 3532, 4415, 4520, 4972, 6215, 7064, 8830, 9040, 9713, 9944, 12430, 14128, 17660, 19426, 19888, 24860, 35320, 38852, 48565, 49720, 70640, 77704, 97130, 99440, 99779, 155408, 194260, 199558, 388520, 399116, 498895, 777040, 798232, 997790, 1097569, 1596464, 1995580, 2195138, 3991160, 4390276, 5487845, 7982320, 8780552, 10975690, 17561104, 21951380, 43902760, 87805520]

約数ペア:

[(1, 87805520), (2, 43902760), (4, 21951380), (5, 17561104), (8, 10975690), (10, 8780552), (11, 7982320), (16, 5487845), (20, 4390276), (22, 3991160), (40, 2195138), (44, 1995580), (55, 1596464), (80, 1097569), (88, 997790), (110, 798232), (113, 777040), (176, 498895), (220, 399116), (226, 388520), (440, 199558), (452, 194260), (565, 155408), (880, 99779), (883, 99440), (904, 97130), (1130, 77704), (1243, 70640), (1766, 49720), (1808, 48565), (2260, 38852), (2486, 35320), (3532, 24860), (4415, 19888), (4520, 19426), (4972, 17660), (6215, 14128), (7064, 12430), (8830, 9944), (9040, 9713)]