491291520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^2$

素因数の和:221

約数の個数: 192

約数和(自身を含む): 1624749840

約数和(自身を除く): 1133458320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 79, 80, 82, 96, 120, 123, 128, 158, 160, 164, 192, 205, 237, 240, 246, 316, 320, 328, 384, 395, 410, 474, 480, 492, 615, 632, 640, 656, 790, 820, 948, 960, 984, 1185, 1230, 1264, 1312, 1580, 1640, 1896, 1920, 1968, 2370, 2460, 2528, 2624, 3160, 3239, 3280, 3792, 3936, 4740, 4920, 5056, 5248, 6241, 6320, 6478, 6560, 7584, 7872, 9480, 9717, 9840, 10112, 12482, 12640, 12956, 13120, 15168, 15744, 16195, 18723, 18960, 19434, 19680, 24964, 25280, 25912, 26240, 30336, 31205, 32390, 37446, 37920, 38868, 39360, 48585, 49928, 50560, 51824, 62410, 64780, 74892, 75840, 77736, 78720, 93615, 97170, 99856, 103648, 124820, 129560, 149784, 151680, 155472, 187230, 194340, 199712, 207296, 249640, 255881, 259120, 299568, 310944, 374460, 388680, 399424, 414592, 499280, 511762, 518240, 599136, 621888, 748920, 767643, 777360, 798848, 998560, 1023524, 1036480, 1198272, 1243776, 1279405, 1497840, 1535286, 1554720, 1997120, 2047048, 2072960, 2396544, 2558810, 2995680, 3070572, 3109440, 3838215, 3994240, 4094096, 5117620, 5991360, 6141144, 6218880, 7676430, 8188192, 10235240, 11982720, 12282288, 15352860, 16376384, 20470480, 24564576, 30705720, 32752768, 40940960, 49129152, 61411440, 81881920, 98258304, 122822880, 163763840, 245645760, 491291520]

約数ペア:

[(1, 491291520), (2, 245645760), (3, 163763840), (4, 122822880), (5, 98258304), (6, 81881920), (8, 61411440), (10, 49129152), (12, 40940960), (15, 32752768), (16, 30705720), (20, 24564576), (24, 20470480), (30, 16376384), (32, 15352860), (40, 12282288), (41, 11982720), (48, 10235240), (60, 8188192), (64, 7676430), (79, 6218880), (80, 6141144), (82, 5991360), (96, 5117620), (120, 4094096), (123, 3994240), (128, 3838215), (158, 3109440), (160, 3070572), (164, 2995680), (192, 2558810), (205, 2396544), (237, 2072960), (240, 2047048), (246, 1997120), (316, 1554720), (320, 1535286), (328, 1497840), (384, 1279405), (395, 1243776), (410, 1198272), (474, 1036480), (480, 1023524), (492, 998560), (615, 798848), (632, 777360), (640, 767643), (656, 748920), (790, 621888), (820, 599136), (948, 518240), (960, 511762), (984, 499280), (1185, 414592), (1230, 399424), (1264, 388680), (1312, 374460), (1580, 310944), (1640, 299568), (1896, 259120), (1920, 255881), (1968, 249640), (2370, 207296), (2460, 199712), (2528, 194340), (2624, 187230), (3160, 155472), (3239, 151680), (3280, 149784), (3792, 129560), (3936, 124820), (4740, 103648), (4920, 99856), (5056, 97170), (5248, 93615), (6241, 78720), (6320, 77736), (6478, 75840), (6560, 74892), (7584, 64780), (7872, 62410), (9480, 51824), (9717, 50560), (9840, 49928), (10112, 48585), (12482, 39360), (12640, 38868), (12956, 37920), (13120, 37446), (15168, 32390), (15744, 31205), (16195, 30336), (18723, 26240), (18960, 25912), (19434, 25280), (19680, 24964)]