20379840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 224

約数和(自身を含む): 73737216

約数和(自身を除く): 53357376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 64, 65, 69, 71, 78, 80, 92, 96, 104, 115, 120, 130, 138, 142, 156, 160, 184, 192, 195, 208, 213, 230, 240, 260, 276, 284, 299, 312, 320, 345, 355, 368, 390, 416, 426, 460, 480, 520, 552, 568, 598, 624, 690, 710, 736, 780, 832, 852, 897, 920, 923, 960, 1040, 1065, 1104, 1136, 1196, 1248, 1380, 1420, 1472, 1495, 1560, 1633, 1704, 1794, 1840, 1846, 2080, 2130, 2208, 2272, 2392, 2496, 2760, 2769, 2840, 2990, 3120, 3266, 3408, 3588, 3680, 3692, 4160, 4260, 4416, 4485, 4544, 4615, 4784, 4899, 5520, 5538, 5680, 5980, 6240, 6532, 6816, 7176, 7360, 7384, 8165, 8520, 8970, 9230, 9568, 9798, 11040, 11076, 11360, 11960, 12480, 13064, 13632, 13845, 14352, 14768, 16330, 17040, 17940, 18460, 19136, 19596, 21229, 22080, 22152, 22720, 23920, 24495, 26128, 27690, 28704, 29536, 32660, 34080, 35880, 36920, 39192, 42458, 44304, 47840, 48990, 52256, 55380, 57408, 59072, 63687, 65320, 68160, 71760, 73840, 78384, 84916, 88608, 95680, 97980, 104512, 106145, 110760, 127374, 130640, 143520, 147680, 156768, 169832, 177216, 195960, 212290, 221520, 254748, 261280, 287040, 295360, 313536, 318435, 339664, 391920, 424580, 443040, 509496, 522560, 636870, 679328, 783840, 849160, 886080, 1018992, 1273740, 1358656, 1567680, 1698320, 2037984, 2547480, 3396640, 4075968, 5094960, 6793280, 10189920, 20379840]

約数ペア:

[(1, 20379840), (2, 10189920), (3, 6793280), (4, 5094960), (5, 4075968), (6, 3396640), (8, 2547480), (10, 2037984), (12, 1698320), (13, 1567680), (15, 1358656), (16, 1273740), (20, 1018992), (23, 886080), (24, 849160), (26, 783840), (30, 679328), (32, 636870), (39, 522560), (40, 509496), (46, 443040), (48, 424580), (52, 391920), (60, 339664), (64, 318435), (65, 313536), (69, 295360), (71, 287040), (78, 261280), (80, 254748), (92, 221520), (96, 212290), (104, 195960), (115, 177216), (120, 169832), (130, 156768), (138, 147680), (142, 143520), (156, 130640), (160, 127374), (184, 110760), (192, 106145), (195, 104512), (208, 97980), (213, 95680), (230, 88608), (240, 84916), (260, 78384), (276, 73840), (284, 71760), (299, 68160), (312, 65320), (320, 63687), (345, 59072), (355, 57408), (368, 55380), (390, 52256), (416, 48990), (426, 47840), (460, 44304), (480, 42458), (520, 39192), (552, 36920), (568, 35880), (598, 34080), (624, 32660), (690, 29536), (710, 28704), (736, 27690), (780, 26128), (832, 24495), (852, 23920), (897, 22720), (920, 22152), (923, 22080), (960, 21229), (1040, 19596), (1065, 19136), (1104, 18460), (1136, 17940), (1196, 17040), (1248, 16330), (1380, 14768), (1420, 14352), (1472, 13845), (1495, 13632), (1560, 13064), (1633, 12480), (1704, 11960), (1794, 11360), (1840, 11076), (1846, 11040), (2080, 9798), (2130, 9568), (2208, 9230), (2272, 8970), (2392, 8520), (2496, 8165), (2760, 7384), (2769, 7360), (2840, 7176), (2990, 6816), (3120, 6532), (3266, 6240), (3408, 5980), (3588, 5680), (3680, 5538), (3692, 5520), (4160, 4899), (4260, 4784), (4416, 4615), (4485, 4544)]