257905440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:656

約数の個数: 288

約数和(自身を含む): 990662400

約数和(自身を除く): 732756960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 30, 32, 36, 39, 40, 45, 46, 48, 52, 60, 65, 69, 72, 78, 80, 90, 92, 96, 104, 115, 117, 120, 130, 138, 144, 156, 160, 180, 184, 195, 207, 208, 230, 234, 240, 260, 276, 288, 299, 312, 345, 360, 368, 390, 414, 416, 460, 468, 480, 520, 552, 585, 598, 599, 624, 690, 720, 736, 780, 828, 897, 920, 936, 1035, 1040, 1104, 1170, 1196, 1198, 1248, 1380, 1440, 1495, 1560, 1656, 1794, 1797, 1840, 1872, 2070, 2080, 2208, 2340, 2392, 2396, 2691, 2760, 2990, 2995, 3120, 3312, 3588, 3594, 3680, 3744, 4140, 4485, 4680, 4784, 4792, 5382, 5391, 5520, 5980, 5990, 6240, 6624, 7176, 7188, 7787, 8280, 8970, 8985, 9360, 9568, 9584, 10764, 10782, 11040, 11960, 11980, 13455, 13777, 14352, 14376, 15574, 16560, 17940, 17970, 18720, 19168, 21528, 21564, 23361, 23920, 23960, 26910, 26955, 27554, 28704, 28752, 31148, 33120, 35880, 35940, 38935, 41331, 43056, 43128, 46722, 47840, 47920, 53820, 53910, 55108, 57504, 62296, 68885, 70083, 71760, 71880, 77870, 82662, 86112, 86256, 93444, 95840, 107640, 107820, 110216, 116805, 123993, 124592, 137770, 140166, 143520, 143760, 155740, 165324, 172512, 179101, 186888, 206655, 215280, 215640, 220432, 233610, 247986, 249184, 275540, 280332, 287520, 311480, 330648, 350415, 358202, 373776, 413310, 430560, 431280, 440864, 467220, 495972, 537303, 551080, 560664, 619965, 622960, 661296, 700830, 716404, 747552, 826620, 862560, 895505, 934440, 991944, 1074606, 1102160, 1121328, 1239930, 1245920, 1322592, 1401660, 1432808, 1611909, 1653240, 1791010, 1868880, 1983888, 2149212, 2204320, 2242656, 2479860, 2686515, 2803320, 2865616, 3223818, 3306480, 3582020, 3737760, 3967776, 4298424, 4959720, 5373030, 5606640, 5731232, 6447636, 6612960, 7164040, 8059545, 8596848, 9919440, 10746060, 11213280, 12895272, 14328080, 16119090, 17193696, 19838880, 21492120, 25790544, 28656160, 32238180, 42984240, 51581088, 64476360, 85968480, 128952720, 257905440]

約数ペア:

[(1, 257905440), (2, 128952720), (3, 85968480), (4, 64476360), (5, 51581088), (6, 42984240), (8, 32238180), (9, 28656160), (10, 25790544), (12, 21492120), (13, 19838880), (15, 17193696), (16, 16119090), (18, 14328080), (20, 12895272), (23, 11213280), (24, 10746060), (26, 9919440), (30, 8596848), (32, 8059545), (36, 7164040), (39, 6612960), (40, 6447636), (45, 5731232), (46, 5606640), (48, 5373030), (52, 4959720), (60, 4298424), (65, 3967776), (69, 3737760), (72, 3582020), (78, 3306480), (80, 3223818), (90, 2865616), (92, 2803320), (96, 2686515), (104, 2479860), (115, 2242656), (117, 2204320), (120, 2149212), (130, 1983888), (138, 1868880), (144, 1791010), (156, 1653240), (160, 1611909), (180, 1432808), (184, 1401660), (195, 1322592), (207, 1245920), (208, 1239930), (230, 1121328), (234, 1102160), (240, 1074606), (260, 991944), (276, 934440), (288, 895505), (299, 862560), (312, 826620), (345, 747552), (360, 716404), (368, 700830), (390, 661296), (414, 622960), (416, 619965), (460, 560664), (468, 551080), (480, 537303), (520, 495972), (552, 467220), (585, 440864), (598, 431280), (599, 430560), (624, 413310), (690, 373776), (720, 358202), (736, 350415), (780, 330648), (828, 311480), (897, 287520), (920, 280332), (936, 275540), (1035, 249184), (1040, 247986), (1104, 233610), (1170, 220432), (1196, 215640), (1198, 215280), (1248, 206655), (1380, 186888), (1440, 179101), (1495, 172512), (1560, 165324), (1656, 155740), (1794, 143760), (1797, 143520), (1840, 140166), (1872, 137770), (2070, 124592), (2080, 123993), (2208, 116805), (2340, 110216), (2392, 107820), (2396, 107640), (2691, 95840), (2760, 93444), (2990, 86256), (2995, 86112), (3120, 82662), (3312, 77870), (3588, 71880), (3594, 71760), (3680, 70083), (3744, 68885), (4140, 62296), (4485, 57504), (4680, 55108), (4784, 53910), (4792, 53820), (5382, 47920), (5391, 47840), (5520, 46722), (5980, 43128), (5990, 43056), (6240, 41331), (6624, 38935), (7176, 35940), (7188, 35880), (7787, 33120), (8280, 31148), (8970, 28752), (8985, 28704), (9360, 27554), (9568, 26955), (9584, 26910), (10764, 23960), (10782, 23920), (11040, 23361), (11960, 21564), (11980, 21528), (13455, 19168), (13777, 18720), (14352, 17970), (14376, 17940), (15574, 16560)]