81209480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{184567}}^1$

素因数の和:184589

約数の個数: 32

約数和(自身を含む): 199333440

約数和(自身を除く): 118123960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 184567, 369134, 738268, 922835, 1476536, 1845670, 2030237, 3691340, 4060474, 7382680, 8120948, 10151185, 16241896, 20302370, 40604740, 81209480]

約数ペア:

[(1, 81209480), (2, 40604740), (4, 20302370), (5, 16241896), (8, 10151185), (10, 8120948), (11, 7382680), (20, 4060474), (22, 3691340), (40, 2030237), (44, 1845670), (55, 1476536), (88, 922835), (110, 738268), (220, 369134), (440, 184567)]