164016820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{745531}}^1$

素因数の和:745551

約数の個数: 24

約数和(自身を含む): 375748128

約数和(自身を除く): 211731308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 745531, 1491062, 2982124, 3727655, 7455310, 8200841, 14910620, 16401682, 32803364, 41004205, 82008410, 164016820]

約数ペア:

[(1, 164016820), (2, 82008410), (4, 41004205), (5, 32803364), (10, 16401682), (11, 14910620), (20, 8200841), (22, 7455310), (44, 3727655), (55, 2982124), (110, 1491062), (220, 745531)]