71211580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 170698752

約数和(自身を除く): 99487172

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 71, 94, 97, 110, 142, 188, 194, 220, 235, 284, 355, 388, 470, 485, 517, 710, 781, 940, 970, 1034, 1067, 1420, 1562, 1940, 2068, 2134, 2585, 3124, 3337, 3905, 4268, 4559, 5170, 5335, 6674, 6887, 7810, 9118, 10340, 10670, 13348, 13774, 15620, 16685, 18236, 21340, 22795, 27548, 33370, 34435, 36707, 45590, 50149, 66740, 68870, 73414, 75757, 91180, 100298, 137740, 146828, 151514, 183535, 200596, 250745, 303028, 323689, 367070, 378785, 501490, 647378, 734140, 757570, 1002980, 1294756, 1515140, 1618445, 3236890, 3560579, 6473780, 7121158, 14242316, 17802895, 35605790, 71211580]

約数ペア:

[(1, 71211580), (2, 35605790), (4, 17802895), (5, 14242316), (10, 7121158), (11, 6473780), (20, 3560579), (22, 3236890), (44, 1618445), (47, 1515140), (55, 1294756), (71, 1002980), (94, 757570), (97, 734140), (110, 647378), (142, 501490), (188, 378785), (194, 367070), (220, 323689), (235, 303028), (284, 250745), (355, 200596), (388, 183535), (470, 151514), (485, 146828), (517, 137740), (710, 100298), (781, 91180), (940, 75757), (970, 73414), (1034, 68870), (1067, 66740), (1420, 50149), (1562, 45590), (1940, 36707), (2068, 34435), (2134, 33370), (2585, 27548), (3124, 22795), (3337, 21340), (3905, 18236), (4268, 16685), (4559, 15620), (5170, 13774), (5335, 13348), (6674, 10670), (6887, 10340), (7810, 9118)]