208316280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:2005

約数の個数: 128

約数和(自身を含む): 667699200

約数和(自身を除く): 459382920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 31, 40, 58, 60, 62, 87, 93, 116, 120, 124, 145, 155, 174, 186, 232, 248, 290, 310, 348, 372, 435, 465, 580, 620, 696, 744, 870, 899, 930, 1160, 1240, 1740, 1798, 1860, 1931, 2697, 3480, 3596, 3720, 3862, 4495, 5394, 5793, 7192, 7724, 8990, 9655, 10788, 11586, 13485, 15448, 17980, 19310, 21576, 23172, 26970, 28965, 35960, 38620, 46344, 53940, 55999, 57930, 59861, 77240, 107880, 111998, 115860, 119722, 167997, 179583, 223996, 231720, 239444, 279995, 299305, 335994, 359166, 447992, 478888, 559990, 598610, 671988, 718332, 839985, 897915, 1119980, 1197220, 1343976, 1436664, 1679970, 1735969, 1795830, 2239960, 2394440, 3359940, 3471938, 3591660, 5207907, 6719880, 6943876, 7183320, 8679845, 10415814, 13887752, 17359690, 20831628, 26039535, 34719380, 41663256, 52079070, 69438760, 104158140, 208316280]

約数ペア:

[(1, 208316280), (2, 104158140), (3, 69438760), (4, 52079070), (5, 41663256), (6, 34719380), (8, 26039535), (10, 20831628), (12, 17359690), (15, 13887752), (20, 10415814), (24, 8679845), (29, 7183320), (30, 6943876), (31, 6719880), (40, 5207907), (58, 3591660), (60, 3471938), (62, 3359940), (87, 2394440), (93, 2239960), (116, 1795830), (120, 1735969), (124, 1679970), (145, 1436664), (155, 1343976), (174, 1197220), (186, 1119980), (232, 897915), (248, 839985), (290, 718332), (310, 671988), (348, 598610), (372, 559990), (435, 478888), (465, 447992), (580, 359166), (620, 335994), (696, 299305), (744, 279995), (870, 239444), (899, 231720), (930, 223996), (1160, 179583), (1240, 167997), (1740, 119722), (1798, 115860), (1860, 111998), (1931, 107880), (2697, 77240), (3480, 59861), (3596, 57930), (3720, 55999), (3862, 53940), (4495, 46344), (5394, 38620), (5793, 35960), (7192, 28965), (7724, 26970), (8990, 23172), (9655, 21576), (10788, 19310), (11586, 17980), (13485, 15448)]