28331820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:416

約数の個数: 144

約数和(自身を含む): 96314400

約数和(自身を除く): 67982580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 330, 349, 369, 396, 410, 451, 492, 495, 615, 660, 698, 738, 820, 902, 990, 1047, 1230, 1353, 1396, 1476, 1745, 1804, 1845, 1980, 2094, 2255, 2460, 2706, 3141, 3490, 3690, 3839, 4059, 4188, 4510, 5235, 5412, 6282, 6765, 6980, 7380, 7678, 8118, 9020, 10470, 11517, 12564, 13530, 14309, 15356, 15705, 16236, 19195, 20295, 20940, 23034, 27060, 28618, 31410, 34551, 38390, 40590, 42927, 46068, 57236, 57585, 62820, 69102, 71545, 76780, 81180, 85854, 115170, 128781, 138204, 143090, 157399, 171708, 172755, 214635, 230340, 257562, 286180, 314798, 345510, 429270, 472197, 515124, 629596, 643905, 691020, 786995, 858540, 944394, 1287810, 1416591, 1573990, 1888788, 2360985, 2575620, 2833182, 3147980, 4721970, 5666364, 7082955, 9443940, 14165910, 28331820]

約数ペア:

[(1, 28331820), (2, 14165910), (3, 9443940), (4, 7082955), (5, 5666364), (6, 4721970), (9, 3147980), (10, 2833182), (11, 2575620), (12, 2360985), (15, 1888788), (18, 1573990), (20, 1416591), (22, 1287810), (30, 944394), (33, 858540), (36, 786995), (41, 691020), (44, 643905), (45, 629596), (55, 515124), (60, 472197), (66, 429270), (82, 345510), (90, 314798), (99, 286180), (110, 257562), (123, 230340), (132, 214635), (164, 172755), (165, 171708), (180, 157399), (198, 143090), (205, 138204), (220, 128781), (246, 115170), (330, 85854), (349, 81180), (369, 76780), (396, 71545), (410, 69102), (451, 62820), (492, 57585), (495, 57236), (615, 46068), (660, 42927), (698, 40590), (738, 38390), (820, 34551), (902, 31410), (990, 28618), (1047, 27060), (1230, 23034), (1353, 20940), (1396, 20295), (1476, 19195), (1745, 16236), (1804, 15705), (1845, 15356), (1980, 14309), (2094, 13530), (2255, 12564), (2460, 11517), (2706, 10470), (3141, 9020), (3490, 8118), (3690, 7678), (3839, 7380), (4059, 6980), (4188, 6765), (4510, 6282), (5235, 5412)]