215211920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 320

約数和(自身を含む): 685670400

約数和(自身を除く): 470458480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 31, 35, 40, 44, 46, 49, 55, 56, 62, 70, 77, 80, 88, 92, 98, 110, 112, 115, 124, 140, 154, 155, 161, 176, 184, 196, 217, 220, 230, 245, 248, 253, 280, 308, 310, 322, 341, 343, 368, 385, 392, 434, 440, 460, 490, 496, 506, 539, 560, 616, 620, 644, 682, 686, 713, 770, 784, 805, 868, 880, 920, 980, 1012, 1078, 1085, 1127, 1232, 1240, 1265, 1288, 1364, 1372, 1426, 1519, 1540, 1610, 1705, 1715, 1736, 1771, 1840, 1960, 2024, 2156, 2170, 2254, 2387, 2480, 2530, 2576, 2695, 2728, 2744, 2852, 3038, 3080, 3220, 3410, 3430, 3472, 3542, 3565, 3773, 3920, 4048, 4312, 4340, 4508, 4774, 4991, 5060, 5390, 5456, 5488, 5635, 5704, 6076, 6160, 6440, 6820, 6860, 7084, 7130, 7546, 7595, 7843, 7889, 8624, 8680, 8855, 9016, 9548, 9982, 10120, 10633, 10780, 11270, 11408, 11935, 12152, 12397, 12880, 13640, 13720, 14168, 14260, 15092, 15190, 15686, 15778, 16709, 17360, 17710, 18032, 18865, 19096, 19964, 20240, 21266, 21560, 22540, 23870, 24304, 24794, 24955, 27280, 27440, 28336, 28520, 30184, 30380, 31372, 31556, 33418, 34937, 35420, 37730, 38192, 39215, 39445, 39928, 42532, 43120, 45080, 47740, 49588, 49910, 53165, 54901, 57040, 60368, 60760, 61985, 62744, 63112, 66836, 69874, 70840, 75460, 78430, 78890, 79856, 83545, 85064, 86779, 90160, 95480, 99176, 99820, 106330, 109802, 116963, 121520, 123970, 125488, 126224, 133672, 139748, 141680, 150920, 156860, 157780, 167090, 170128, 173558, 174685, 190960, 198352, 199640, 212660, 219604, 233926, 244559, 247940, 267344, 274505, 279496, 301840, 313720, 315560, 334180, 347116, 349370, 384307, 399280, 425320, 433895, 439208, 467852, 489118, 495880, 549010, 558992, 584815, 627440, 631120, 668360, 694232, 698740, 768614, 850640, 867790, 878416, 935704, 978236, 991760, 1098020, 1169630, 1222795, 1336720, 1388464, 1397480, 1537228, 1735580, 1871408, 1921535, 1956472, 2196040, 2339260, 2445590, 2690149, 2794960, 3074456, 3471160, 3843070, 3912944, 4392080, 4678520, 4891180, 5380298, 6148912, 6942320, 7686140, 9357040, 9782360, 10760596, 13450745, 15372280, 19564720, 21521192, 26901490, 30744560, 43042384, 53802980, 107605960, 215211920]

約数ペア:

[(1, 215211920), (2, 107605960), (4, 53802980), (5, 43042384), (7, 30744560), (8, 26901490), (10, 21521192), (11, 19564720), (14, 15372280), (16, 13450745), (20, 10760596), (22, 9782360), (23, 9357040), (28, 7686140), (31, 6942320), (35, 6148912), (40, 5380298), (44, 4891180), (46, 4678520), (49, 4392080), (55, 3912944), (56, 3843070), (62, 3471160), (70, 3074456), (77, 2794960), (80, 2690149), (88, 2445590), (92, 2339260), (98, 2196040), (110, 1956472), (112, 1921535), (115, 1871408), (124, 1735580), (140, 1537228), (154, 1397480), (155, 1388464), (161, 1336720), (176, 1222795), (184, 1169630), (196, 1098020), (217, 991760), (220, 978236), (230, 935704), (245, 878416), (248, 867790), (253, 850640), (280, 768614), (308, 698740), (310, 694232), (322, 668360), (341, 631120), (343, 627440), (368, 584815), (385, 558992), (392, 549010), (434, 495880), (440, 489118), (460, 467852), (490, 439208), (496, 433895), (506, 425320), (539, 399280), (560, 384307), (616, 349370), (620, 347116), (644, 334180), (682, 315560), (686, 313720), (713, 301840), (770, 279496), (784, 274505), (805, 267344), (868, 247940), (880, 244559), (920, 233926), (980, 219604), (1012, 212660), (1078, 199640), (1085, 198352), (1127, 190960), (1232, 174685), (1240, 173558), (1265, 170128), (1288, 167090), (1364, 157780), (1372, 156860), (1426, 150920), (1519, 141680), (1540, 139748), (1610, 133672), (1705, 126224), (1715, 125488), (1736, 123970), (1771, 121520), (1840, 116963), (1960, 109802), (2024, 106330), (2156, 99820), (2170, 99176), (2254, 95480), (2387, 90160), (2480, 86779), (2530, 85064), (2576, 83545), (2695, 79856), (2728, 78890), (2744, 78430), (2852, 75460), (3038, 70840), (3080, 69874), (3220, 66836), (3410, 63112), (3430, 62744), (3472, 61985), (3542, 60760), (3565, 60368), (3773, 57040), (3920, 54901), (4048, 53165), (4312, 49910), (4340, 49588), (4508, 47740), (4774, 45080), (4991, 43120), (5060, 42532), (5390, 39928), (5456, 39445), (5488, 39215), (5635, 38192), (5704, 37730), (6076, 35420), (6160, 34937), (6440, 33418), (6820, 31556), (6860, 31372), (7084, 30380), (7130, 30184), (7546, 28520), (7595, 28336), (7843, 27440), (7889, 27280), (8624, 24955), (8680, 24794), (8855, 24304), (9016, 23870), (9548, 22540), (9982, 21560), (10120, 21266), (10633, 20240), (10780, 19964), (11270, 19096), (11408, 18865), (11935, 18032), (12152, 17710), (12397, 17360), (12880, 16709), (13640, 15778), (13720, 15686), (14168, 15190), (14260, 15092)]