245899440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:552

約数の個数: 240

約数和(自身を含む): 891371520

約数和(自身を除く): 645472080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 48, 60, 62, 69, 72, 80, 90, 92, 93, 115, 120, 124, 138, 144, 155, 180, 184, 186, 207, 230, 240, 248, 276, 279, 310, 345, 360, 368, 372, 414, 460, 465, 479, 496, 552, 558, 620, 690, 713, 720, 744, 828, 920, 930, 958, 1035, 1104, 1116, 1240, 1380, 1395, 1426, 1437, 1488, 1656, 1840, 1860, 1916, 2070, 2139, 2232, 2395, 2480, 2760, 2790, 2852, 2874, 3312, 3565, 3720, 3832, 4140, 4278, 4311, 4464, 4790, 5520, 5580, 5704, 5748, 6417, 7130, 7185, 7440, 7664, 8280, 8556, 8622, 9580, 10695, 11017, 11160, 11408, 11496, 12834, 14260, 14370, 14849, 16560, 17112, 17244, 19160, 21390, 21555, 22034, 22320, 22992, 25668, 28520, 28740, 29698, 32085, 33051, 34224, 34488, 38320, 42780, 43110, 44068, 44547, 51336, 55085, 57040, 57480, 59396, 64170, 66102, 68976, 74245, 85560, 86220, 88136, 89094, 99153, 102672, 110170, 114960, 118792, 128340, 132204, 133641, 148490, 165255, 171120, 172440, 176272, 178188, 198306, 220340, 222735, 237584, 256680, 264408, 267282, 296980, 330510, 341527, 344880, 356376, 396612, 440680, 445470, 495765, 513360, 528816, 534564, 593960, 661020, 668205, 683054, 712752, 793224, 881360, 890940, 991530, 1024581, 1069128, 1187920, 1322040, 1336410, 1366108, 1586448, 1707635, 1781880, 1983060, 2049162, 2138256, 2644080, 2672820, 2732216, 3073743, 3415270, 3563760, 3966120, 4098324, 5122905, 5345640, 5464432, 6147486, 6830540, 7932240, 8196648, 10245810, 10691280, 12294972, 13661080, 15368715, 16393296, 20491620, 24589944, 27322160, 30737430, 40983240, 49179888, 61474860, 81966480, 122949720, 245899440]

約数ペア:

[(1, 245899440), (2, 122949720), (3, 81966480), (4, 61474860), (5, 49179888), (6, 40983240), (8, 30737430), (9, 27322160), (10, 24589944), (12, 20491620), (15, 16393296), (16, 15368715), (18, 13661080), (20, 12294972), (23, 10691280), (24, 10245810), (30, 8196648), (31, 7932240), (36, 6830540), (40, 6147486), (45, 5464432), (46, 5345640), (48, 5122905), (60, 4098324), (62, 3966120), (69, 3563760), (72, 3415270), (80, 3073743), (90, 2732216), (92, 2672820), (93, 2644080), (115, 2138256), (120, 2049162), (124, 1983060), (138, 1781880), (144, 1707635), (155, 1586448), (180, 1366108), (184, 1336410), (186, 1322040), (207, 1187920), (230, 1069128), (240, 1024581), (248, 991530), (276, 890940), (279, 881360), (310, 793224), (345, 712752), (360, 683054), (368, 668205), (372, 661020), (414, 593960), (460, 534564), (465, 528816), (479, 513360), (496, 495765), (552, 445470), (558, 440680), (620, 396612), (690, 356376), (713, 344880), (720, 341527), (744, 330510), (828, 296980), (920, 267282), (930, 264408), (958, 256680), (1035, 237584), (1104, 222735), (1116, 220340), (1240, 198306), (1380, 178188), (1395, 176272), (1426, 172440), (1437, 171120), (1488, 165255), (1656, 148490), (1840, 133641), (1860, 132204), (1916, 128340), (2070, 118792), (2139, 114960), (2232, 110170), (2395, 102672), (2480, 99153), (2760, 89094), (2790, 88136), (2852, 86220), (2874, 85560), (3312, 74245), (3565, 68976), (3720, 66102), (3832, 64170), (4140, 59396), (4278, 57480), (4311, 57040), (4464, 55085), (4790, 51336), (5520, 44547), (5580, 44068), (5704, 43110), (5748, 42780), (6417, 38320), (7130, 34488), (7185, 34224), (7440, 33051), (7664, 32085), (8280, 29698), (8556, 28740), (8622, 28520), (9580, 25668), (10695, 22992), (11017, 22320), (11160, 22034), (11408, 21555), (11496, 21390), (12834, 19160), (14260, 17244), (14370, 17112), (14849, 16560)]