21845280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:730

約数の個数: 96

約数和(自身を含む): 69890688

約数和(自身を除く): 48045408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 71, 80, 96, 120, 142, 160, 213, 240, 284, 355, 426, 480, 568, 641, 710, 852, 1065, 1136, 1282, 1420, 1704, 1923, 2130, 2272, 2564, 2840, 3205, 3408, 3846, 4260, 5128, 5680, 6410, 6816, 7692, 8520, 9615, 10256, 11360, 12820, 15384, 17040, 19230, 20512, 25640, 30768, 34080, 38460, 45511, 51280, 61536, 76920, 91022, 102560, 136533, 153840, 182044, 227555, 273066, 307680, 364088, 455110, 546132, 682665, 728176, 910220, 1092264, 1365330, 1456352, 1820440, 2184528, 2730660, 3640880, 4369056, 5461320, 7281760, 10922640, 21845280]

約数ペア:

[(1, 21845280), (2, 10922640), (3, 7281760), (4, 5461320), (5, 4369056), (6, 3640880), (8, 2730660), (10, 2184528), (12, 1820440), (15, 1456352), (16, 1365330), (20, 1092264), (24, 910220), (30, 728176), (32, 682665), (40, 546132), (48, 455110), (60, 364088), (71, 307680), (80, 273066), (96, 227555), (120, 182044), (142, 153840), (160, 136533), (213, 102560), (240, 91022), (284, 76920), (355, 61536), (426, 51280), (480, 45511), (568, 38460), (641, 34080), (710, 30768), (852, 25640), (1065, 20512), (1136, 19230), (1282, 17040), (1420, 15384), (1704, 12820), (1923, 11360), (2130, 10256), (2272, 9615), (2564, 8520), (2840, 7692), (3205, 6816), (3408, 6410), (3846, 5680), (4260, 5128)]