199960420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{908911}}^1$

素因数の和:908931

約数の個数: 24

約数和(自身を含む): 458091648

約数和(自身を除く): 258131228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 908911, 1817822, 3635644, 4544555, 9089110, 9998021, 18178220, 19996042, 39992084, 49990105, 99980210, 199960420]

約数ペア:

[(1, 199960420), (2, 99980210), (4, 49990105), (5, 39992084), (10, 19996042), (11, 18178220), (20, 9998021), (22, 9089110), (44, 4544555), (55, 3635644), (110, 1817822), (220, 908911)]