7220840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16411}}^1$

素因数の和:16433

約数の個数: 32

約数和(自身を含む): 17724960

約数和(自身を除く): 10504120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 16411, 32822, 65644, 82055, 131288, 164110, 180521, 328220, 361042, 656440, 722084, 902605, 1444168, 1805210, 3610420, 7220840]

約数ペア:

[(1, 7220840), (2, 3610420), (4, 1805210), (5, 1444168), (8, 902605), (10, 722084), (11, 656440), (20, 361042), (22, 328220), (40, 180521), (44, 164110), (55, 131288), (88, 82055), (110, 65644), (220, 32822), (440, 16411)]