201912040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{458891}}^1$

素因数の和:458913

約数の個数: 32

約数和(自身を含む): 495603360

約数和(自身を除く): 293691320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 458891, 917782, 1835564, 2294455, 3671128, 4588910, 5047801, 9177820, 10095602, 18355640, 20191204, 25239005, 40382408, 50478010, 100956020, 201912040]

約数ペア:

[(1, 201912040), (2, 100956020), (4, 50478010), (5, 40382408), (8, 25239005), (10, 20191204), (11, 18355640), (20, 10095602), (22, 9177820), (40, 5047801), (44, 4588910), (55, 3671128), (88, 2294455), (110, 1835564), (220, 917782), (440, 458891)]