28135755

素因数分解:

$3^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 52899840

約数和(自身を除く): 24764085

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 83, 93, 135, 155, 243, 249, 279, 405, 415, 465, 729, 747, 837, 1215, 1245, 1395, 2187, 2241, 2511, 2573, 3645, 3735, 4185, 6723, 7533, 7719, 10935, 11205, 12555, 12865, 20169, 22599, 23157, 33615, 37665, 38595, 60507, 67797, 69471, 100845, 112995, 115785, 181521, 208413, 302535, 338985, 347355, 625239, 907605, 1042065, 1875717, 3126195, 5627151, 9378585, 28135755]

約数ペア:

[(1, 28135755), (3, 9378585), (5, 5627151), (9, 3126195), (15, 1875717), (27, 1042065), (31, 907605), (45, 625239), (81, 347355), (83, 338985), (93, 302535), (135, 208413), (155, 181521), (243, 115785), (249, 112995), (279, 100845), (405, 69471), (415, 67797), (465, 60507), (729, 38595), (747, 37665), (837, 33615), (1215, 23157), (1245, 22599), (1395, 20169), (2187, 12865), (2241, 12555), (2511, 11205), (2573, 10935), (3645, 7719), (3735, 7533), (4185, 6723)]