28381140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5437}}^1$

素因数の和:5481

約数の個数: 72

約数和(自身を含む): 89074440

約数和(自身を除く): 60693300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 5437, 10874, 16311, 21748, 27185, 32622, 48933, 54370, 65244, 81555, 97866, 108740, 157673, 163110, 195732, 244665, 315346, 326220, 473019, 489330, 630692, 788365, 946038, 978660, 1419057, 1576730, 1892076, 2365095, 2838114, 3153460, 4730190, 5676228, 7095285, 9460380, 14190570, 28381140]

約数ペア:

[(1, 28381140), (2, 14190570), (3, 9460380), (4, 7095285), (5, 5676228), (6, 4730190), (9, 3153460), (10, 2838114), (12, 2365095), (15, 1892076), (18, 1576730), (20, 1419057), (29, 978660), (30, 946038), (36, 788365), (45, 630692), (58, 489330), (60, 473019), (87, 326220), (90, 315346), (116, 244665), (145, 195732), (174, 163110), (180, 157673), (261, 108740), (290, 97866), (348, 81555), (435, 65244), (522, 54370), (580, 48933), (870, 32622), (1044, 27185), (1305, 21748), (1740, 16311), (2610, 10874), (5220, 5437)]