28281000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{857}}^1$

素因数の和:892

約数の個数: 128

約数和(自身を含む): 96370560

約数和(自身を除く): 68089560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 25, 30, 33, 40, 44, 50, 55, 60, 66, 75, 88, 100, 110, 120, 125, 132, 150, 165, 200, 220, 250, 264, 275, 300, 330, 375, 440, 500, 550, 600, 660, 750, 825, 857, 1000, 1100, 1320, 1375, 1500, 1650, 1714, 2200, 2571, 2750, 3000, 3300, 3428, 4125, 4285, 5142, 5500, 6600, 6856, 8250, 8570, 9427, 10284, 11000, 12855, 16500, 17140, 18854, 20568, 21425, 25710, 28281, 33000, 34280, 37708, 42850, 47135, 51420, 56562, 64275, 75416, 85700, 94270, 102840, 107125, 113124, 128550, 141405, 171400, 188540, 214250, 226248, 235675, 257100, 282810, 321375, 377080, 428500, 471350, 514200, 565620, 642750, 707025, 857000, 942700, 1131240, 1178375, 1285500, 1414050, 1885400, 2356750, 2571000, 2828100, 3535125, 4713500, 5656200, 7070250, 9427000, 14140500, 28281000]

約数ペア:

[(1, 28281000), (2, 14140500), (3, 9427000), (4, 7070250), (5, 5656200), (6, 4713500), (8, 3535125), (10, 2828100), (11, 2571000), (12, 2356750), (15, 1885400), (20, 1414050), (22, 1285500), (24, 1178375), (25, 1131240), (30, 942700), (33, 857000), (40, 707025), (44, 642750), (50, 565620), (55, 514200), (60, 471350), (66, 428500), (75, 377080), (88, 321375), (100, 282810), (110, 257100), (120, 235675), (125, 226248), (132, 214250), (150, 188540), (165, 171400), (200, 141405), (220, 128550), (250, 113124), (264, 107125), (275, 102840), (300, 94270), (330, 85700), (375, 75416), (440, 64275), (500, 56562), (550, 51420), (600, 47135), (660, 42850), (750, 37708), (825, 34280), (857, 33000), (1000, 28281), (1100, 25710), (1320, 21425), (1375, 20568), (1500, 18854), (1650, 17140), (1714, 16500), (2200, 12855), (2571, 11000), (2750, 10284), (3000, 9427), (3300, 8570), (3428, 8250), (4125, 6856), (4285, 6600), (5142, 5500)]