405375840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1067

約数の個数: 240

約数和(自身を含む): 1478252160

約数和(自身を除く): 1072876320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 72, 80, 81, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 162, 180, 186, 216, 240, 248, 270, 279, 288, 310, 324, 360, 372, 405, 432, 465, 480, 496, 540, 558, 620, 648, 720, 744, 810, 837, 864, 930, 992, 1009, 1080, 1116, 1240, 1296, 1395, 1440, 1488, 1620, 1674, 1860, 2018, 2160, 2232, 2480, 2511, 2592, 2790, 2976, 3027, 3240, 3348, 3720, 4036, 4185, 4320, 4464, 4960, 5022, 5045, 5580, 6054, 6480, 6696, 7440, 8072, 8370, 8928, 9081, 10044, 10090, 11160, 12108, 12555, 12960, 13392, 14880, 15135, 16144, 16740, 18162, 20088, 20180, 22320, 24216, 25110, 26784, 27243, 30270, 31279, 32288, 33480, 36324, 40176, 40360, 44640, 45405, 48432, 50220, 54486, 60540, 62558, 66960, 72648, 80352, 80720, 81729, 90810, 93837, 96864, 100440, 108972, 121080, 125116, 133920, 136215, 145296, 156395, 161440, 163458, 181620, 187674, 200880, 217944, 242160, 250232, 272430, 281511, 290592, 312790, 326916, 363240, 375348, 401760, 408645, 435888, 469185, 484320, 500464, 544860, 563022, 625580, 653832, 726480, 750696, 817290, 844533, 871776, 938370, 1000928, 1089720, 1126044, 1251160, 1307664, 1407555, 1452960, 1501392, 1634580, 1689066, 1876740, 2179440, 2252088, 2502320, 2533599, 2615328, 2815110, 3002784, 3269160, 3378132, 3753480, 4222665, 4358880, 4504176, 5004640, 5067198, 5630220, 6538320, 6756264, 7506960, 8445330, 9008352, 10134396, 11260440, 12667995, 13076640, 13512528, 15013920, 16890660, 20268792, 22520880, 25335990, 27025056, 33781320, 40537584, 45041760, 50671980, 67562640, 81075168, 101343960, 135125280, 202687920, 405375840]

約数ペア:

[(1, 405375840), (2, 202687920), (3, 135125280), (4, 101343960), (5, 81075168), (6, 67562640), (8, 50671980), (9, 45041760), (10, 40537584), (12, 33781320), (15, 27025056), (16, 25335990), (18, 22520880), (20, 20268792), (24, 16890660), (27, 15013920), (30, 13512528), (31, 13076640), (32, 12667995), (36, 11260440), (40, 10134396), (45, 9008352), (48, 8445330), (54, 7506960), (60, 6756264), (62, 6538320), (72, 5630220), (80, 5067198), (81, 5004640), (90, 4504176), (93, 4358880), (96, 4222665), (108, 3753480), (120, 3378132), (124, 3269160), (135, 3002784), (144, 2815110), (155, 2615328), (160, 2533599), (162, 2502320), (180, 2252088), (186, 2179440), (216, 1876740), (240, 1689066), (248, 1634580), (270, 1501392), (279, 1452960), (288, 1407555), (310, 1307664), (324, 1251160), (360, 1126044), (372, 1089720), (405, 1000928), (432, 938370), (465, 871776), (480, 844533), (496, 817290), (540, 750696), (558, 726480), (620, 653832), (648, 625580), (720, 563022), (744, 544860), (810, 500464), (837, 484320), (864, 469185), (930, 435888), (992, 408645), (1009, 401760), (1080, 375348), (1116, 363240), (1240, 326916), (1296, 312790), (1395, 290592), (1440, 281511), (1488, 272430), (1620, 250232), (1674, 242160), (1860, 217944), (2018, 200880), (2160, 187674), (2232, 181620), (2480, 163458), (2511, 161440), (2592, 156395), (2790, 145296), (2976, 136215), (3027, 133920), (3240, 125116), (3348, 121080), (3720, 108972), (4036, 100440), (4185, 96864), (4320, 93837), (4464, 90810), (4960, 81729), (5022, 80720), (5045, 80352), (5580, 72648), (6054, 66960), (6480, 62558), (6696, 60540), (7440, 54486), (8072, 50220), (8370, 48432), (8928, 45405), (9081, 44640), (10044, 40360), (10090, 40176), (11160, 36324), (12108, 33480), (12555, 32288), (12960, 31279), (13392, 30270), (14880, 27243), (15135, 26784), (16144, 25110), (16740, 24216), (18162, 22320), (20088, 20180)]