81217664

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1559}}^1$

素因数の和:1621

約数の個数: 64

約数和(自身を含む): 181396800

約数和(自身を除く): 100179136

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 64, 74, 88, 128, 148, 176, 296, 352, 407, 592, 704, 814, 1184, 1408, 1559, 1628, 2368, 3118, 3256, 4736, 6236, 6512, 12472, 13024, 17149, 24944, 26048, 34298, 49888, 52096, 57683, 68596, 99776, 115366, 137192, 199552, 230732, 274384, 461464, 548768, 634513, 922928, 1097536, 1269026, 1845856, 2195072, 2538052, 3691712, 5076104, 7383424, 10152208, 20304416, 40608832, 81217664]

約数ペア:

[(1, 81217664), (2, 40608832), (4, 20304416), (8, 10152208), (11, 7383424), (16, 5076104), (22, 3691712), (32, 2538052), (37, 2195072), (44, 1845856), (64, 1269026), (74, 1097536), (88, 922928), (128, 634513), (148, 548768), (176, 461464), (296, 274384), (352, 230732), (407, 199552), (592, 137192), (704, 115366), (814, 99776), (1184, 68596), (1408, 57683), (1559, 52096), (1628, 49888), (2368, 34298), (3118, 26048), (3256, 24944), (4736, 17149), (6236, 13024), (6512, 12472)]