20420840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46411}}^1$

素因数の和:46433

約数の個数: 32

約数和(自身を含む): 50124960

約数和(自身を除く): 29704120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46411, 92822, 185644, 232055, 371288, 464110, 510521, 928220, 1021042, 1856440, 2042084, 2552605, 4084168, 5105210, 10210420, 20420840]

約数ペア:

[(1, 20420840), (2, 10210420), (4, 5105210), (5, 4084168), (8, 2552605), (10, 2042084), (11, 1856440), (20, 1021042), (22, 928220), (40, 510521), (44, 464110), (55, 371288), (88, 232055), (110, 185644), (220, 92822), (440, 46411)]