641514240

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:499

約数の個数: 216

約数和(自身を含む): 2238425280

約数和(自身を除く): 1596911040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 233, 239, 240, 256, 288, 320, 360, 384, 466, 478, 480, 576, 640, 699, 717, 720, 768, 932, 956, 960, 1152, 1165, 1195, 1280, 1398, 1434, 1440, 1864, 1912, 1920, 2097, 2151, 2304, 2330, 2390, 2796, 2868, 2880, 3495, 3585, 3728, 3824, 3840, 4194, 4302, 4660, 4780, 5592, 5736, 5760, 6990, 7170, 7456, 7648, 8388, 8604, 9320, 9560, 10485, 10755, 11184, 11472, 11520, 13980, 14340, 14912, 15296, 16776, 17208, 18640, 19120, 20970, 21510, 22368, 22944, 27960, 28680, 29824, 30592, 33552, 34416, 37280, 38240, 41940, 43020, 44736, 45888, 55687, 55920, 57360, 59648, 61184, 67104, 68832, 74560, 76480, 83880, 86040, 89472, 91776, 111374, 111840, 114720, 134208, 137664, 149120, 152960, 167061, 167760, 172080, 178944, 183552, 222748, 223680, 229440, 268416, 275328, 278435, 298240, 305920, 334122, 335520, 344160, 445496, 447360, 458880, 501183, 536832, 550656, 556870, 668244, 671040, 688320, 835305, 890992, 894720, 917760, 1002366, 1113740, 1336488, 1342080, 1376640, 1670610, 1781984, 2004732, 2227480, 2505915, 2672976, 2684160, 2753280, 3341220, 3563968, 4009464, 4454960, 5011830, 5345952, 6682440, 7127936, 8018928, 8909920, 10023660, 10691904, 13364880, 14255872, 16037856, 17819840, 20047320, 21383808, 26729760, 32075712, 35639680, 40094640, 42767616, 53459520, 64151424, 71279360, 80189280, 106919040, 128302848, 160378560, 213838080, 320757120, 641514240]

約数ペア:

[(1, 641514240), (2, 320757120), (3, 213838080), (4, 160378560), (5, 128302848), (6, 106919040), (8, 80189280), (9, 71279360), (10, 64151424), (12, 53459520), (15, 42767616), (16, 40094640), (18, 35639680), (20, 32075712), (24, 26729760), (30, 21383808), (32, 20047320), (36, 17819840), (40, 16037856), (45, 14255872), (48, 13364880), (60, 10691904), (64, 10023660), (72, 8909920), (80, 8018928), (90, 7127936), (96, 6682440), (120, 5345952), (128, 5011830), (144, 4454960), (160, 4009464), (180, 3563968), (192, 3341220), (233, 2753280), (239, 2684160), (240, 2672976), (256, 2505915), (288, 2227480), (320, 2004732), (360, 1781984), (384, 1670610), (466, 1376640), (478, 1342080), (480, 1336488), (576, 1113740), (640, 1002366), (699, 917760), (717, 894720), (720, 890992), (768, 835305), (932, 688320), (956, 671040), (960, 668244), (1152, 556870), (1165, 550656), (1195, 536832), (1280, 501183), (1398, 458880), (1434, 447360), (1440, 445496), (1864, 344160), (1912, 335520), (1920, 334122), (2097, 305920), (2151, 298240), (2304, 278435), (2330, 275328), (2390, 268416), (2796, 229440), (2868, 223680), (2880, 222748), (3495, 183552), (3585, 178944), (3728, 172080), (3824, 167760), (3840, 167061), (4194, 152960), (4302, 149120), (4660, 137664), (4780, 134208), (5592, 114720), (5736, 111840), (5760, 111374), (6990, 91776), (7170, 89472), (7456, 86040), (7648, 83880), (8388, 76480), (8604, 74560), (9320, 68832), (9560, 67104), (10485, 61184), (10755, 59648), (11184, 57360), (11472, 55920), (11520, 55687), (13980, 45888), (14340, 44736), (14912, 43020), (15296, 41940), (16776, 38240), (17208, 37280), (18640, 34416), (19120, 33552), (20970, 30592), (21510, 29824), (22368, 28680), (22944, 27960)]