20161240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45821}}^1$

素因数の和:45843

約数の個数: 32

約数和(自身を含む): 49487760

約数和(自身を除く): 29326520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45821, 91642, 183284, 229105, 366568, 458210, 504031, 916420, 1008062, 1832840, 2016124, 2520155, 4032248, 5040310, 10080620, 20161240]

約数ペア:

[(1, 20161240), (2, 10080620), (4, 5040310), (5, 4032248), (8, 2520155), (10, 2016124), (11, 1832840), (20, 1008062), (22, 916420), (40, 504031), (44, 458210), (55, 366568), (88, 229105), (110, 183284), (220, 91642), (440, 45821)]