81555000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{5437}}^1$

素因数の和:5466

約数の個数: 80

約数和(自身を含む): 254824680

約数和(自身を除く): 173269680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1500, 1875, 2500, 3000, 3750, 5000, 5437, 7500, 10874, 15000, 16311, 21748, 27185, 32622, 43496, 54370, 65244, 81555, 108740, 130488, 135925, 163110, 217480, 271850, 326220, 407775, 543700, 652440, 679625, 815550, 1087400, 1359250, 1631100, 2038875, 2718500, 3262200, 3398125, 4077750, 5437000, 6796250, 8155500, 10194375, 13592500, 16311000, 20388750, 27185000, 40777500, 81555000]

約数ペア:

[(1, 81555000), (2, 40777500), (3, 27185000), (4, 20388750), (5, 16311000), (6, 13592500), (8, 10194375), (10, 8155500), (12, 6796250), (15, 5437000), (20, 4077750), (24, 3398125), (25, 3262200), (30, 2718500), (40, 2038875), (50, 1631100), (60, 1359250), (75, 1087400), (100, 815550), (120, 679625), (125, 652440), (150, 543700), (200, 407775), (250, 326220), (300, 271850), (375, 217480), (500, 163110), (600, 135925), (625, 130488), (750, 108740), (1000, 81555), (1250, 65244), (1500, 54370), (1875, 43496), (2500, 32622), (3000, 27185), (3750, 21748), (5000, 16311), (5437, 15000), (7500, 10874)]