199756040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{453991}}^1$

素因数の和:454013

約数の個数: 32

約数和(自身を含む): 490311360

約数和(自身を除く): 290555320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 453991, 907982, 1815964, 2269955, 3631928, 4539910, 4993901, 9079820, 9987802, 18159640, 19975604, 24969505, 39951208, 49939010, 99878020, 199756040]

約数ペア:

[(1, 199756040), (2, 99878020), (4, 49939010), (5, 39951208), (8, 24969505), (10, 19975604), (11, 18159640), (20, 9987802), (22, 9079820), (40, 4993901), (44, 4539910), (55, 3631928), (88, 2269955), (110, 1815964), (220, 907982), (440, 453991)]