28389900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1229}}^1$

素因数の和:1264

約数の個数: 144

約数和(自身を含む): 102493440

約数和(自身を除く): 74103540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 25, 28, 30, 33, 35, 42, 44, 50, 55, 60, 66, 70, 75, 77, 84, 100, 105, 110, 132, 140, 150, 154, 165, 175, 210, 220, 231, 275, 300, 308, 330, 350, 385, 420, 462, 525, 550, 660, 700, 770, 825, 924, 1050, 1100, 1155, 1229, 1540, 1650, 1925, 2100, 2310, 2458, 3300, 3687, 3850, 4620, 4916, 5775, 6145, 7374, 7700, 8603, 11550, 12290, 13519, 14748, 17206, 18435, 23100, 24580, 25809, 27038, 30725, 34412, 36870, 40557, 43015, 51618, 54076, 61450, 67595, 73740, 81114, 86030, 92175, 94633, 103236, 122900, 129045, 135190, 162228, 172060, 184350, 189266, 202785, 215075, 258090, 270380, 283899, 337975, 368700, 378532, 405570, 430150, 473165, 516180, 567798, 645225, 675950, 811140, 860300, 946330, 1013925, 1135596, 1290450, 1351900, 1419495, 1892660, 2027850, 2365825, 2580900, 2838990, 4055700, 4731650, 5677980, 7097475, 9463300, 14194950, 28389900]

約数ペア:

[(1, 28389900), (2, 14194950), (3, 9463300), (4, 7097475), (5, 5677980), (6, 4731650), (7, 4055700), (10, 2838990), (11, 2580900), (12, 2365825), (14, 2027850), (15, 1892660), (20, 1419495), (21, 1351900), (22, 1290450), (25, 1135596), (28, 1013925), (30, 946330), (33, 860300), (35, 811140), (42, 675950), (44, 645225), (50, 567798), (55, 516180), (60, 473165), (66, 430150), (70, 405570), (75, 378532), (77, 368700), (84, 337975), (100, 283899), (105, 270380), (110, 258090), (132, 215075), (140, 202785), (150, 189266), (154, 184350), (165, 172060), (175, 162228), (210, 135190), (220, 129045), (231, 122900), (275, 103236), (300, 94633), (308, 92175), (330, 86030), (350, 81114), (385, 73740), (420, 67595), (462, 61450), (525, 54076), (550, 51618), (660, 43015), (700, 40557), (770, 36870), (825, 34412), (924, 30725), (1050, 27038), (1100, 25809), (1155, 24580), (1229, 23100), (1540, 18435), (1650, 17206), (1925, 14748), (2100, 13519), (2310, 12290), (2458, 11550), (3300, 8603), (3687, 7700), (3850, 7374), (4620, 6145), (4916, 5775)]