28727820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1319}}^1$

素因数の和:1356

約数の個数: 108

約数和(自身を含む): 95855760

約数和(自身を除く): 67127940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1319, 1452, 1815, 1980, 2178, 2420, 2638, 3630, 3957, 4356, 5276, 5445, 6595, 7260, 7914, 10890, 11871, 13190, 14509, 15828, 19785, 21780, 23742, 26380, 29018, 39570, 43527, 47484, 58036, 59355, 72545, 79140, 87054, 118710, 130581, 145090, 159599, 174108, 217635, 237420, 261162, 290180, 319198, 435270, 478797, 522324, 638396, 652905, 797995, 870540, 957594, 1305810, 1436391, 1595990, 1915188, 2393985, 2611620, 2872782, 3191980, 4787970, 5745564, 7181955, 9575940, 14363910, 28727820]

約数ペア:

[(1, 28727820), (2, 14363910), (3, 9575940), (4, 7181955), (5, 5745564), (6, 4787970), (9, 3191980), (10, 2872782), (11, 2611620), (12, 2393985), (15, 1915188), (18, 1595990), (20, 1436391), (22, 1305810), (30, 957594), (33, 870540), (36, 797995), (44, 652905), (45, 638396), (55, 522324), (60, 478797), (66, 435270), (90, 319198), (99, 290180), (110, 261162), (121, 237420), (132, 217635), (165, 174108), (180, 159599), (198, 145090), (220, 130581), (242, 118710), (330, 87054), (363, 79140), (396, 72545), (484, 59355), (495, 58036), (605, 47484), (660, 43527), (726, 39570), (990, 29018), (1089, 26380), (1210, 23742), (1319, 21780), (1452, 19785), (1815, 15828), (1980, 14509), (2178, 13190), (2420, 11871), (2638, 10890), (3630, 7914), (3957, 7260), (4356, 6595), (5276, 5445)]