22180400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^2$

素因数の和:171

約数の個数: 90

約数和(自身を含む): 58963116

約数和(自身を除く): 36782716

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 71, 80, 88, 100, 110, 142, 176, 200, 220, 275, 284, 355, 400, 440, 550, 568, 710, 781, 880, 1100, 1136, 1420, 1562, 1775, 2200, 2840, 3124, 3550, 3905, 4400, 5041, 5680, 6248, 7100, 7810, 10082, 12496, 14200, 15620, 19525, 20164, 25205, 28400, 31240, 39050, 40328, 50410, 55451, 62480, 78100, 80656, 100820, 110902, 126025, 156200, 201640, 221804, 252050, 277255, 312400, 403280, 443608, 504100, 554510, 887216, 1008200, 1109020, 1386275, 2016400, 2218040, 2772550, 4436080, 5545100, 11090200, 22180400]

約数ペア:

[(1, 22180400), (2, 11090200), (4, 5545100), (5, 4436080), (8, 2772550), (10, 2218040), (11, 2016400), (16, 1386275), (20, 1109020), (22, 1008200), (25, 887216), (40, 554510), (44, 504100), (50, 443608), (55, 403280), (71, 312400), (80, 277255), (88, 252050), (100, 221804), (110, 201640), (142, 156200), (176, 126025), (200, 110902), (220, 100820), (275, 80656), (284, 78100), (355, 62480), (400, 55451), (440, 50410), (550, 40328), (568, 39050), (710, 31240), (781, 28400), (880, 25205), (1100, 20164), (1136, 19525), (1420, 15620), (1562, 14200), (1775, 12496), (2200, 10082), (2840, 7810), (3124, 7100), (3550, 6248), (3905, 5680), (4400, 5041)]