1261447040

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{293}}^1$

素因数の和:381

約数の個数: 192

約数和(自身を含む): 3573370080

約数和(自身を除く): 2311923040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 293, 310, 320, 434, 448, 496, 560, 586, 620, 640, 868, 896, 961, 992, 1085, 1120, 1172, 1240, 1465, 1736, 1922, 1984, 2051, 2170, 2240, 2344, 2480, 2930, 3472, 3844, 3968, 4102, 4340, 4480, 4688, 4805, 4960, 5860, 6727, 6944, 7688, 8204, 8680, 9083, 9376, 9610, 9920, 10255, 11720, 13454, 13888, 15376, 16408, 17360, 18166, 18752, 19220, 19840, 20510, 23440, 26908, 27776, 30752, 32816, 33635, 34720, 36332, 37504, 38440, 41020, 45415, 46880, 53816, 61504, 63581, 65632, 67270, 69440, 72664, 76880, 82040, 90830, 93760, 107632, 123008, 127162, 131264, 134540, 138880, 145328, 153760, 164080, 181660, 187520, 215264, 254324, 262528, 269080, 281573, 290656, 307520, 317905, 328160, 363320, 430528, 508648, 538160, 563146, 581312, 615040, 635810, 656320, 726640, 861056, 1017296, 1076320, 1126292, 1162624, 1271620, 1312640, 1407865, 1453280, 1971011, 2034592, 2152640, 2252584, 2543240, 2815730, 2906560, 3942022, 4069184, 4305280, 4505168, 5086480, 5631460, 5813120, 7884044, 8138368, 9010336, 9855055, 10172960, 11262920, 15768088, 18020672, 19710110, 20345920, 22525840, 31536176, 36041344, 39420220, 40691840, 45051680, 63072352, 78840440, 90103360, 126144704, 157680880, 180206720, 252289408, 315361760, 630723520, 1261447040]

約数ペア:

[(1, 1261447040), (2, 630723520), (4, 315361760), (5, 252289408), (7, 180206720), (8, 157680880), (10, 126144704), (14, 90103360), (16, 78840440), (20, 63072352), (28, 45051680), (31, 40691840), (32, 39420220), (35, 36041344), (40, 31536176), (56, 22525840), (62, 20345920), (64, 19710110), (70, 18020672), (80, 15768088), (112, 11262920), (124, 10172960), (128, 9855055), (140, 9010336), (155, 8138368), (160, 7884044), (217, 5813120), (224, 5631460), (248, 5086480), (280, 4505168), (293, 4305280), (310, 4069184), (320, 3942022), (434, 2906560), (448, 2815730), (496, 2543240), (560, 2252584), (586, 2152640), (620, 2034592), (640, 1971011), (868, 1453280), (896, 1407865), (961, 1312640), (992, 1271620), (1085, 1162624), (1120, 1126292), (1172, 1076320), (1240, 1017296), (1465, 861056), (1736, 726640), (1922, 656320), (1984, 635810), (2051, 615040), (2170, 581312), (2240, 563146), (2344, 538160), (2480, 508648), (2930, 430528), (3472, 363320), (3844, 328160), (3968, 317905), (4102, 307520), (4340, 290656), (4480, 281573), (4688, 269080), (4805, 262528), (4960, 254324), (5860, 215264), (6727, 187520), (6944, 181660), (7688, 164080), (8204, 153760), (8680, 145328), (9083, 138880), (9376, 134540), (9610, 131264), (9920, 127162), (10255, 123008), (11720, 107632), (13454, 93760), (13888, 90830), (15376, 82040), (16408, 76880), (17360, 72664), (18166, 69440), (18752, 67270), (19220, 65632), (19840, 63581), (20510, 61504), (23440, 53816), (26908, 46880), (27776, 45415), (30752, 41020), (32816, 38440), (33635, 37504), (34720, 36332)]