399975272960

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^2\times {\mathrm{367}}^1\times {\mathrm{443}}^1$

素因数の和:895

約数の個数: 240

約数和(自身を含む): 995879795328

約数和(自身を除く): 595904522368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 367, 443, 496, 512, 620, 640, 734, 886, 961, 992, 1240, 1280, 1468, 1772, 1835, 1922, 1984, 2215, 2480, 2560, 2936, 3544, 3670, 3844, 3968, 4430, 4805, 4960, 5872, 7088, 7340, 7688, 7936, 8860, 9610, 9920, 11377, 11744, 13733, 14176, 14680, 15376, 15872, 17720, 19220, 19840, 22754, 23488, 27466, 28352, 29360, 30752, 35440, 38440, 39680, 45508, 46976, 54932, 56704, 56885, 58720, 61504, 68665, 70880, 76880, 79360, 91016, 93952, 109864, 113408, 113770, 117440, 123008, 137330, 141760, 153760, 162581, 182032, 187904, 219728, 226816, 227540, 234880, 246016, 274660, 283520, 307520, 325162, 352687, 364064, 425723, 439456, 455080, 469760, 492032, 549320, 567040, 615040, 650324, 705374, 728128, 812905, 851446, 878912, 910160, 939520, 1098640, 1134080, 1230080, 1300648, 1410748, 1456256, 1625810, 1702892, 1757824, 1763435, 1820320, 2128615, 2197280, 2460160, 2601296, 2821496, 2912512, 3251620, 3405784, 3515648, 3526870, 3640640, 4257230, 4394560, 5040011, 5202592, 5642992, 5825024, 6503240, 6811568, 7031296, 7053740, 7281280, 8514460, 8789120, 10080022, 10405184, 11285984, 13006480, 13623136, 14107480, 14562560, 17028920, 17578240, 20160044, 20810368, 22571968, 25200055, 26012960, 27246272, 28214960, 29125120, 34057840, 35156480, 40320088, 41620736, 45143936, 50400110, 52025920, 54492544, 56429920, 68115680, 80640176, 83241472, 90287872, 100800220, 104051840, 108985088, 112859840, 136231360, 156240341, 161280352, 180575744, 201600440, 208103680, 217970176, 225719680, 272462720, 312480682, 322560704, 403200880, 416207360, 451439360, 544925440, 624961364, 645121408, 781201705, 806401760, 902878720, 1089850880, 1249922728, 1290242816, 1562403410, 1612803520, 2499845456, 2580485632, 3124806820, 3225607040, 4999690912, 6249613640, 6451214080, 9999381824, 12499227280, 12902428160, 19998763648, 24998454560, 39997527296, 49996909120, 79995054592, 99993818240, 199987636480, 399975272960]

約数ペア:

[(1, 399975272960), (2, 199987636480), (4, 99993818240), (5, 79995054592), (8, 49996909120), (10, 39997527296), (16, 24998454560), (20, 19998763648), (31, 12902428160), (32, 12499227280), (40, 9999381824), (62, 6451214080), (64, 6249613640), (80, 4999690912), (124, 3225607040), (128, 3124806820), (155, 2580485632), (160, 2499845456), (248, 1612803520), (256, 1562403410), (310, 1290242816), (320, 1249922728), (367, 1089850880), (443, 902878720), (496, 806401760), (512, 781201705), (620, 645121408), (640, 624961364), (734, 544925440), (886, 451439360), (961, 416207360), (992, 403200880), (1240, 322560704), (1280, 312480682), (1468, 272462720), (1772, 225719680), (1835, 217970176), (1922, 208103680), (1984, 201600440), (2215, 180575744), (2480, 161280352), (2560, 156240341), (2936, 136231360), (3544, 112859840), (3670, 108985088), (3844, 104051840), (3968, 100800220), (4430, 90287872), (4805, 83241472), (4960, 80640176), (5872, 68115680), (7088, 56429920), (7340, 54492544), (7688, 52025920), (7936, 50400110), (8860, 45143936), (9610, 41620736), (9920, 40320088), (11377, 35156480), (11744, 34057840), (13733, 29125120), (14176, 28214960), (14680, 27246272), (15376, 26012960), (15872, 25200055), (17720, 22571968), (19220, 20810368), (19840, 20160044), (22754, 17578240), (23488, 17028920), (27466, 14562560), (28352, 14107480), (29360, 13623136), (30752, 13006480), (35440, 11285984), (38440, 10405184), (39680, 10080022), (45508, 8789120), (46976, 8514460), (54932, 7281280), (56704, 7053740), (56885, 7031296), (58720, 6811568), (61504, 6503240), (68665, 5825024), (70880, 5642992), (76880, 5202592), (79360, 5040011), (91016, 4394560), (93952, 4257230), (109864, 3640640), (113408, 3526870), (113770, 3515648), (117440, 3405784), (123008, 3251620), (137330, 2912512), (141760, 2821496), (153760, 2601296), (162581, 2460160), (182032, 2197280), (187904, 2128615), (219728, 1820320), (226816, 1763435), (227540, 1757824), (234880, 1702892), (246016, 1625810), (274660, 1456256), (283520, 1410748), (307520, 1300648), (325162, 1230080), (352687, 1134080), (364064, 1098640), (425723, 939520), (439456, 910160), (455080, 878912), (469760, 851446), (492032, 812905), (549320, 728128), (567040, 705374), (615040, 650324)]