257507040

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{443}}^1$

素因数の和:641

約数の個数: 192

約数和(自身を含む): 934488576

約数和(自身を除く): 676981536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 173, 210, 224, 240, 280, 336, 346, 420, 443, 480, 519, 560, 672, 692, 840, 865, 886, 1038, 1120, 1211, 1329, 1384, 1680, 1730, 1772, 2076, 2215, 2422, 2595, 2658, 2768, 3101, 3360, 3460, 3544, 3633, 4152, 4430, 4844, 5190, 5316, 5536, 6055, 6202, 6645, 6920, 7088, 7266, 8304, 8860, 9303, 9688, 10380, 10632, 12110, 12404, 13290, 13840, 14176, 14532, 15505, 16608, 17720, 18165, 18606, 19376, 20760, 21264, 24220, 24808, 26580, 27680, 29064, 31010, 35440, 36330, 37212, 38752, 41520, 42528, 46515, 48440, 49616, 53160, 58128, 62020, 70880, 72660, 74424, 76639, 83040, 93030, 96880, 99232, 106320, 116256, 124040, 145320, 148848, 153278, 186060, 193760, 212640, 229917, 248080, 290640, 297696, 306556, 372120, 383195, 459834, 496160, 536473, 581280, 613112, 744240, 766390, 919668, 1072946, 1149585, 1226224, 1488480, 1532780, 1609419, 1839336, 2145892, 2299170, 2452448, 2682365, 3065560, 3218838, 3678672, 4291784, 4598340, 5364730, 6131120, 6437676, 7357344, 8047095, 8583568, 9196680, 10729460, 12262240, 12875352, 16094190, 17167136, 18393360, 21458920, 25750704, 32188380, 36786720, 42917840, 51501408, 64376760, 85835680, 128753520, 257507040]

約数ペア:

[(1, 257507040), (2, 128753520), (3, 85835680), (4, 64376760), (5, 51501408), (6, 42917840), (7, 36786720), (8, 32188380), (10, 25750704), (12, 21458920), (14, 18393360), (15, 17167136), (16, 16094190), (20, 12875352), (21, 12262240), (24, 10729460), (28, 9196680), (30, 8583568), (32, 8047095), (35, 7357344), (40, 6437676), (42, 6131120), (48, 5364730), (56, 4598340), (60, 4291784), (70, 3678672), (80, 3218838), (84, 3065560), (96, 2682365), (105, 2452448), (112, 2299170), (120, 2145892), (140, 1839336), (160, 1609419), (168, 1532780), (173, 1488480), (210, 1226224), (224, 1149585), (240, 1072946), (280, 919668), (336, 766390), (346, 744240), (420, 613112), (443, 581280), (480, 536473), (519, 496160), (560, 459834), (672, 383195), (692, 372120), (840, 306556), (865, 297696), (886, 290640), (1038, 248080), (1120, 229917), (1211, 212640), (1329, 193760), (1384, 186060), (1680, 153278), (1730, 148848), (1772, 145320), (2076, 124040), (2215, 116256), (2422, 106320), (2595, 99232), (2658, 96880), (2768, 93030), (3101, 83040), (3360, 76639), (3460, 74424), (3544, 72660), (3633, 70880), (4152, 62020), (4430, 58128), (4844, 53160), (5190, 49616), (5316, 48440), (5536, 46515), (6055, 42528), (6202, 41520), (6645, 38752), (6920, 37212), (7088, 36330), (7266, 35440), (8304, 31010), (8860, 29064), (9303, 27680), (9688, 26580), (10380, 24808), (10632, 24220), (12110, 21264), (12404, 20760), (13290, 19376), (13840, 18606), (14176, 18165), (14532, 17720), (15505, 16608)]