81636280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 205117920

約数和(自身を除く): 123481640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 121, 167, 202, 220, 242, 334, 404, 440, 484, 505, 605, 668, 808, 835, 968, 1010, 1111, 1210, 1336, 1670, 1837, 2020, 2222, 2420, 3340, 3674, 4040, 4444, 4840, 5555, 6680, 7348, 8888, 9185, 11110, 12221, 14696, 16867, 18370, 20207, 22220, 24442, 33734, 36740, 40414, 44440, 48884, 61105, 67468, 73480, 80828, 84335, 97768, 101035, 122210, 134936, 161656, 168670, 185537, 202070, 244420, 337340, 371074, 404140, 488840, 674680, 742148, 808280, 927685, 1484296, 1855370, 2040907, 3710740, 4081814, 7421480, 8163628, 10204535, 16327256, 20409070, 40818140, 81636280]

約数ペア:

[(1, 81636280), (2, 40818140), (4, 20409070), (5, 16327256), (8, 10204535), (10, 8163628), (11, 7421480), (20, 4081814), (22, 3710740), (40, 2040907), (44, 1855370), (55, 1484296), (88, 927685), (101, 808280), (110, 742148), (121, 674680), (167, 488840), (202, 404140), (220, 371074), (242, 337340), (334, 244420), (404, 202070), (440, 185537), (484, 168670), (505, 161656), (605, 134936), (668, 122210), (808, 101035), (835, 97768), (968, 84335), (1010, 80828), (1111, 73480), (1210, 67468), (1336, 61105), (1670, 48884), (1837, 44440), (2020, 40414), (2222, 36740), (2420, 33734), (3340, 24442), (3674, 22220), (4040, 20207), (4444, 18370), (4840, 16867), (5555, 14696), (6680, 12221), (7348, 11110), (8888, 9185)]