28012400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5387}}^1$

素因数の和:5418

約数の個数: 60

約数和(自身を含む): 72490152

約数和(自身を除く): 44477752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 5387, 10774, 21548, 26935, 43096, 53870, 70031, 86192, 107740, 134675, 140062, 215480, 269350, 280124, 350155, 430960, 538700, 560248, 700310, 1077400, 1120496, 1400620, 1750775, 2154800, 2801240, 3501550, 5602480, 7003100, 14006200, 28012400]

約数ペア:

[(1, 28012400), (2, 14006200), (4, 7003100), (5, 5602480), (8, 3501550), (10, 2801240), (13, 2154800), (16, 1750775), (20, 1400620), (25, 1120496), (26, 1077400), (40, 700310), (50, 560248), (52, 538700), (65, 430960), (80, 350155), (100, 280124), (104, 269350), (130, 215480), (200, 140062), (208, 134675), (260, 107740), (325, 86192), (400, 70031), (520, 53870), (650, 43096), (1040, 26935), (1300, 21548), (2600, 10774), (5200, 5387)]