1921781760

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1072

約数の個数: 208

約数和(自身を含む): 6353594880

約数和(自身を除く): 4431813120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 512, 620, 640, 744, 768, 930, 960, 992, 1009, 1024, 1240, 1280, 1488, 1536, 1860, 1920, 1984, 2018, 2048, 2480, 2560, 2976, 3027, 3072, 3720, 3840, 3968, 4036, 4096, 4960, 5045, 5120, 5952, 6054, 6144, 7440, 7680, 7936, 8072, 9920, 10090, 10240, 11904, 12108, 12288, 14880, 15135, 15360, 15872, 16144, 19840, 20180, 20480, 23808, 24216, 29760, 30270, 30720, 31279, 31744, 32288, 39680, 40360, 47616, 48432, 59520, 60540, 61440, 62558, 63488, 64576, 79360, 80720, 93837, 95232, 96864, 119040, 121080, 125116, 126976, 129152, 156395, 158720, 161440, 187674, 190464, 193728, 238080, 242160, 250232, 258304, 312790, 317440, 322880, 375348, 380928, 387456, 469185, 476160, 484320, 500464, 516608, 625580, 634880, 645760, 750696, 774912, 938370, 952320, 968640, 1000928, 1033216, 1251160, 1291520, 1501392, 1549824, 1876740, 1904640, 1937280, 2001856, 2066432, 2502320, 2583040, 3002784, 3099648, 3753480, 3874560, 4003712, 4132864, 5004640, 5166080, 6005568, 6199296, 7506960, 7749120, 8007424, 10009280, 10332160, 12011136, 12398592, 15013920, 15498240, 16014848, 20018560, 20664320, 24022272, 30027840, 30996480, 32029696, 40037120, 48044544, 60055680, 61992960, 64059392, 80074240, 96089088, 120111360, 128118784, 160148480, 192178176, 240222720, 320296960, 384356352, 480445440, 640593920, 960890880, 1921781760]

約数ペア:

[(1, 1921781760), (2, 960890880), (3, 640593920), (4, 480445440), (5, 384356352), (6, 320296960), (8, 240222720), (10, 192178176), (12, 160148480), (15, 128118784), (16, 120111360), (20, 96089088), (24, 80074240), (30, 64059392), (31, 61992960), (32, 60055680), (40, 48044544), (48, 40037120), (60, 32029696), (62, 30996480), (64, 30027840), (80, 24022272), (93, 20664320), (96, 20018560), (120, 16014848), (124, 15498240), (128, 15013920), (155, 12398592), (160, 12011136), (186, 10332160), (192, 10009280), (240, 8007424), (248, 7749120), (256, 7506960), (310, 6199296), (320, 6005568), (372, 5166080), (384, 5004640), (465, 4132864), (480, 4003712), (496, 3874560), (512, 3753480), (620, 3099648), (640, 3002784), (744, 2583040), (768, 2502320), (930, 2066432), (960, 2001856), (992, 1937280), (1009, 1904640), (1024, 1876740), (1240, 1549824), (1280, 1501392), (1488, 1291520), (1536, 1251160), (1860, 1033216), (1920, 1000928), (1984, 968640), (2018, 952320), (2048, 938370), (2480, 774912), (2560, 750696), (2976, 645760), (3027, 634880), (3072, 625580), (3720, 516608), (3840, 500464), (3968, 484320), (4036, 476160), (4096, 469185), (4960, 387456), (5045, 380928), (5120, 375348), (5952, 322880), (6054, 317440), (6144, 312790), (7440, 258304), (7680, 250232), (7936, 242160), (8072, 238080), (9920, 193728), (10090, 190464), (10240, 187674), (11904, 161440), (12108, 158720), (12288, 156395), (14880, 129152), (15135, 126976), (15360, 125116), (15872, 121080), (16144, 119040), (19840, 96864), (20180, 95232), (20480, 93837), (23808, 80720), (24216, 79360), (29760, 64576), (30270, 63488), (30720, 62558), (31279, 61440), (31744, 60540), (32288, 59520), (39680, 48432), (40360, 47616)]