19919510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2099}}^1$

素因数の和:2192

約数の個数: 32

約数和(自身を含む): 39160800

約数和(自身を除く): 19241290

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2099, 4198, 4745, 9490, 10495, 20990, 27287, 54574, 136435, 153227, 272870, 306454, 766135, 1532270, 1991951, 3983902, 9959755, 19919510]

約数ペア:

[(1, 19919510), (2, 9959755), (5, 3983902), (10, 1991951), (13, 1532270), (26, 766135), (65, 306454), (73, 272870), (130, 153227), (146, 136435), (365, 54574), (730, 27287), (949, 20990), (1898, 10495), (2099, 9490), (4198, 4745)]