42821280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:379

約数の個数: 144

約数和(自身を含む): 147891744

約数和(自身を除く): 105070464

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 131, 144, 160, 180, 227, 240, 262, 288, 360, 393, 454, 480, 524, 655, 681, 720, 786, 908, 1048, 1135, 1179, 1310, 1362, 1440, 1572, 1816, 1965, 2043, 2096, 2270, 2358, 2620, 2724, 3144, 3405, 3632, 3930, 4086, 4192, 4540, 4716, 5240, 5448, 5895, 6288, 6810, 7264, 7860, 8172, 9080, 9432, 10215, 10480, 10896, 11790, 12576, 13620, 15720, 16344, 18160, 18864, 20430, 20960, 21792, 23580, 27240, 29737, 31440, 32688, 36320, 37728, 40860, 47160, 54480, 59474, 62880, 65376, 81720, 89211, 94320, 108960, 118948, 148685, 163440, 178422, 188640, 237896, 267633, 297370, 326880, 356844, 446055, 475792, 535266, 594740, 713688, 892110, 951584, 1070532, 1189480, 1338165, 1427376, 1784220, 2141064, 2378960, 2676330, 2854752, 3568440, 4282128, 4757920, 5352660, 7136880, 8564256, 10705320, 14273760, 21410640, 42821280]

約数ペア:

[(1, 42821280), (2, 21410640), (3, 14273760), (4, 10705320), (5, 8564256), (6, 7136880), (8, 5352660), (9, 4757920), (10, 4282128), (12, 3568440), (15, 2854752), (16, 2676330), (18, 2378960), (20, 2141064), (24, 1784220), (30, 1427376), (32, 1338165), (36, 1189480), (40, 1070532), (45, 951584), (48, 892110), (60, 713688), (72, 594740), (80, 535266), (90, 475792), (96, 446055), (120, 356844), (131, 326880), (144, 297370), (160, 267633), (180, 237896), (227, 188640), (240, 178422), (262, 163440), (288, 148685), (360, 118948), (393, 108960), (454, 94320), (480, 89211), (524, 81720), (655, 65376), (681, 62880), (720, 59474), (786, 54480), (908, 47160), (1048, 40860), (1135, 37728), (1179, 36320), (1310, 32688), (1362, 31440), (1440, 29737), (1572, 27240), (1816, 23580), (1965, 21792), (2043, 20960), (2096, 20430), (2270, 18864), (2358, 18160), (2620, 16344), (2724, 15720), (3144, 13620), (3405, 12576), (3632, 11790), (3930, 10896), (4086, 10480), (4192, 10215), (4540, 9432), (4716, 9080), (5240, 8172), (5448, 7860), (5895, 7264), (6288, 6810)]