28547280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1329

約数の個数: 120

約数和(自身を含む): 99041280

約数和(自身を除く): 70494000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1279, 1395, 1488, 1860, 2232, 2480, 2558, 2790, 3720, 3837, 4464, 5116, 5580, 6395, 7440, 7674, 10232, 11160, 11511, 12790, 15348, 19185, 20464, 22320, 23022, 25580, 30696, 38370, 39649, 46044, 51160, 57555, 61392, 76740, 79298, 92088, 102320, 115110, 118947, 153480, 158596, 184176, 198245, 230220, 237894, 306960, 317192, 356841, 396490, 460440, 475788, 594735, 634384, 713682, 792980, 920880, 951576, 1189470, 1427364, 1585960, 1784205, 1903152, 2378940, 2854728, 3171920, 3568410, 4757880, 5709456, 7136820, 9515760, 14273640, 28547280]

約数ペア:

[(1, 28547280), (2, 14273640), (3, 9515760), (4, 7136820), (5, 5709456), (6, 4757880), (8, 3568410), (9, 3171920), (10, 2854728), (12, 2378940), (15, 1903152), (16, 1784205), (18, 1585960), (20, 1427364), (24, 1189470), (30, 951576), (31, 920880), (36, 792980), (40, 713682), (45, 634384), (48, 594735), (60, 475788), (62, 460440), (72, 396490), (80, 356841), (90, 317192), (93, 306960), (120, 237894), (124, 230220), (144, 198245), (155, 184176), (180, 158596), (186, 153480), (240, 118947), (248, 115110), (279, 102320), (310, 92088), (360, 79298), (372, 76740), (465, 61392), (496, 57555), (558, 51160), (620, 46044), (720, 39649), (744, 38370), (930, 30696), (1116, 25580), (1240, 23022), (1279, 22320), (1395, 20464), (1488, 19185), (1860, 15348), (2232, 12790), (2480, 11511), (2558, 11160), (2790, 10232), (3720, 7674), (3837, 7440), (4464, 6395), (5116, 5580)]