28639716

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{919}}^1$

素因数の和:993

約数の個数: 72

約数和(自身を含む): 79289280

約数和(自身を除く): 50649564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 53, 84, 98, 106, 147, 159, 196, 212, 294, 318, 371, 588, 636, 742, 919, 1113, 1484, 1838, 2226, 2597, 2757, 3676, 4452, 5194, 5514, 6433, 7791, 10388, 11028, 12866, 15582, 19299, 25732, 31164, 38598, 45031, 48707, 77196, 90062, 97414, 135093, 146121, 180124, 194828, 270186, 292242, 340949, 540372, 584484, 681898, 1022847, 1363796, 2045694, 2386643, 4091388, 4773286, 7159929, 9546572, 14319858, 28639716]

約数ペア:

[(1, 28639716), (2, 14319858), (3, 9546572), (4, 7159929), (6, 4773286), (7, 4091388), (12, 2386643), (14, 2045694), (21, 1363796), (28, 1022847), (42, 681898), (49, 584484), (53, 540372), (84, 340949), (98, 292242), (106, 270186), (147, 194828), (159, 180124), (196, 146121), (212, 135093), (294, 97414), (318, 90062), (371, 77196), (588, 48707), (636, 45031), (742, 38598), (919, 31164), (1113, 25732), (1484, 19299), (1838, 15582), (2226, 12866), (2597, 11028), (2757, 10388), (3676, 7791), (4452, 6433), (5194, 5514)]