442420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2011}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 1014048

約数和(自身を除く): 571628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 2011, 4022, 8044, 10055, 20110, 22121, 40220, 44242, 88484, 110605, 221210, 442420]

約数ペア:

[(1, 442420), (2, 221210), (4, 110605), (5, 88484), (10, 44242), (11, 40220), (20, 22121), (22, 20110), (44, 10055), (55, 8044), (110, 4022), (220, 2011)]