28911960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1$

素因数の和:191

約数の個数: 288

約数和(自身を含む): 120042000

約数和(自身を除く): 91130040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 49, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 98, 99, 105, 110, 120, 126, 132, 140, 147, 149, 154, 165, 168, 180, 196, 198, 210, 220, 231, 245, 252, 264, 280, 294, 298, 308, 315, 330, 360, 385, 392, 396, 420, 440, 441, 447, 462, 490, 495, 504, 539, 588, 596, 616, 630, 660, 693, 735, 745, 770, 792, 840, 882, 894, 924, 980, 990, 1043, 1078, 1155, 1176, 1192, 1260, 1320, 1341, 1386, 1470, 1490, 1540, 1617, 1639, 1764, 1788, 1848, 1960, 1980, 2086, 2156, 2205, 2235, 2310, 2520, 2682, 2695, 2772, 2940, 2980, 3080, 3129, 3234, 3278, 3465, 3528, 3576, 3960, 4172, 4312, 4410, 4470, 4620, 4851, 4917, 5215, 5364, 5390, 5544, 5880, 5960, 6258, 6468, 6556, 6705, 6930, 7301, 8085, 8195, 8344, 8820, 8940, 9240, 9387, 9702, 9834, 10430, 10728, 10780, 11473, 12516, 12936, 13112, 13410, 13860, 14602, 14751, 15645, 16170, 16390, 17640, 17880, 18774, 19404, 19668, 20860, 21560, 21903, 22946, 24255, 24585, 25032, 26820, 27720, 29204, 29502, 31290, 32340, 32780, 34419, 36505, 37548, 38808, 39336, 41720, 43806, 45892, 46935, 48510, 49170, 53640, 57365, 58408, 59004, 62580, 64680, 65560, 65709, 68838, 73010, 73755, 75096, 80311, 87612, 91784, 93870, 97020, 98340, 103257, 109515, 114730, 118008, 125160, 131418, 137676, 146020, 147510, 160622, 172095, 175224, 187740, 194040, 196680, 206514, 219030, 229460, 240933, 262836, 275352, 292040, 295020, 321244, 328545, 344190, 375480, 401555, 413028, 438060, 458920, 481866, 516285, 525672, 590040, 642488, 657090, 688380, 722799, 803110, 826056, 876120, 963732, 1032570, 1204665, 1314180, 1376760, 1445598, 1606220, 1927464, 2065140, 2409330, 2628360, 2891196, 3212440, 3613995, 4130280, 4818660, 5782392, 7227990, 9637320, 14455980, 28911960]

約数ペア:

[(1, 28911960), (2, 14455980), (3, 9637320), (4, 7227990), (5, 5782392), (6, 4818660), (7, 4130280), (8, 3613995), (9, 3212440), (10, 2891196), (11, 2628360), (12, 2409330), (14, 2065140), (15, 1927464), (18, 1606220), (20, 1445598), (21, 1376760), (22, 1314180), (24, 1204665), (28, 1032570), (30, 963732), (33, 876120), (35, 826056), (36, 803110), (40, 722799), (42, 688380), (44, 657090), (45, 642488), (49, 590040), (55, 525672), (56, 516285), (60, 481866), (63, 458920), (66, 438060), (70, 413028), (72, 401555), (77, 375480), (84, 344190), (88, 328545), (90, 321244), (98, 295020), (99, 292040), (105, 275352), (110, 262836), (120, 240933), (126, 229460), (132, 219030), (140, 206514), (147, 196680), (149, 194040), (154, 187740), (165, 175224), (168, 172095), (180, 160622), (196, 147510), (198, 146020), (210, 137676), (220, 131418), (231, 125160), (245, 118008), (252, 114730), (264, 109515), (280, 103257), (294, 98340), (298, 97020), (308, 93870), (315, 91784), (330, 87612), (360, 80311), (385, 75096), (392, 73755), (396, 73010), (420, 68838), (440, 65709), (441, 65560), (447, 64680), (462, 62580), (490, 59004), (495, 58408), (504, 57365), (539, 53640), (588, 49170), (596, 48510), (616, 46935), (630, 45892), (660, 43806), (693, 41720), (735, 39336), (745, 38808), (770, 37548), (792, 36505), (840, 34419), (882, 32780), (894, 32340), (924, 31290), (980, 29502), (990, 29204), (1043, 27720), (1078, 26820), (1155, 25032), (1176, 24585), (1192, 24255), (1260, 22946), (1320, 21903), (1341, 21560), (1386, 20860), (1470, 19668), (1490, 19404), (1540, 18774), (1617, 17880), (1639, 17640), (1764, 16390), (1788, 16170), (1848, 15645), (1960, 14751), (1980, 14602), (2086, 13860), (2156, 13410), (2205, 13112), (2235, 12936), (2310, 12516), (2520, 11473), (2682, 10780), (2695, 10728), (2772, 10430), (2940, 9834), (2980, 9702), (3080, 9387), (3129, 9240), (3234, 8940), (3278, 8820), (3465, 8344), (3528, 8195), (3576, 8085), (3960, 7301), (4172, 6930), (4312, 6705), (4410, 6556), (4470, 6468), (4620, 6258), (4851, 5960), (4917, 5880), (5215, 5544), (5364, 5390)]