256879560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{79}}^2$

素因数の和:193

約数の個数: 192

約数和(自身を含む): 910224000

約数和(自身を除く): 653344440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 79, 84, 98, 105, 120, 140, 147, 158, 168, 196, 210, 237, 245, 280, 294, 316, 343, 392, 395, 420, 474, 490, 553, 588, 632, 686, 735, 790, 840, 948, 980, 1029, 1106, 1176, 1185, 1372, 1470, 1580, 1659, 1715, 1896, 1960, 2058, 2212, 2370, 2744, 2765, 2940, 3160, 3318, 3430, 3871, 4116, 4424, 4740, 5145, 5530, 5880, 6241, 6636, 6860, 7742, 8232, 8295, 9480, 10290, 11060, 11613, 12482, 13272, 13720, 15484, 16590, 18723, 19355, 20580, 22120, 23226, 24964, 27097, 30968, 31205, 33180, 37446, 38710, 41160, 43687, 46452, 49928, 54194, 58065, 62410, 66360, 74892, 77420, 81291, 87374, 92904, 93615, 108388, 116130, 124820, 131061, 135485, 149784, 154840, 162582, 174748, 187230, 216776, 218435, 232260, 249640, 262122, 270970, 305809, 325164, 349496, 374460, 406455, 436870, 464520, 524244, 541940, 611618, 650328, 655305, 748920, 812910, 873740, 917427, 1048488, 1083880, 1223236, 1310610, 1529045, 1625820, 1747480, 1834854, 2140663, 2446472, 2621220, 3058090, 3251640, 3669708, 4281326, 4587135, 5242440, 6116180, 6421989, 7339416, 8562652, 9174270, 10703315, 12232360, 12843978, 17125304, 18348540, 21406630, 25687956, 32109945, 36697080, 42813260, 51375912, 64219890, 85626520, 128439780, 256879560]

約数ペア:

[(1, 256879560), (2, 128439780), (3, 85626520), (4, 64219890), (5, 51375912), (6, 42813260), (7, 36697080), (8, 32109945), (10, 25687956), (12, 21406630), (14, 18348540), (15, 17125304), (20, 12843978), (21, 12232360), (24, 10703315), (28, 9174270), (30, 8562652), (35, 7339416), (40, 6421989), (42, 6116180), (49, 5242440), (56, 4587135), (60, 4281326), (70, 3669708), (79, 3251640), (84, 3058090), (98, 2621220), (105, 2446472), (120, 2140663), (140, 1834854), (147, 1747480), (158, 1625820), (168, 1529045), (196, 1310610), (210, 1223236), (237, 1083880), (245, 1048488), (280, 917427), (294, 873740), (316, 812910), (343, 748920), (392, 655305), (395, 650328), (420, 611618), (474, 541940), (490, 524244), (553, 464520), (588, 436870), (632, 406455), (686, 374460), (735, 349496), (790, 325164), (840, 305809), (948, 270970), (980, 262122), (1029, 249640), (1106, 232260), (1176, 218435), (1185, 216776), (1372, 187230), (1470, 174748), (1580, 162582), (1659, 154840), (1715, 149784), (1896, 135485), (1960, 131061), (2058, 124820), (2212, 116130), (2370, 108388), (2744, 93615), (2765, 92904), (2940, 87374), (3160, 81291), (3318, 77420), (3430, 74892), (3871, 66360), (4116, 62410), (4424, 58065), (4740, 54194), (5145, 49928), (5530, 46452), (5880, 43687), (6241, 41160), (6636, 38710), (6860, 37446), (7742, 33180), (8232, 31205), (8295, 30968), (9480, 27097), (10290, 24964), (11060, 23226), (11613, 22120), (12482, 20580), (13272, 19355), (13720, 18723), (15484, 16590)]