19103120

素因数分解:

$2^4\times 5^1\times {\mathrm{238789}}^1$

素因数の和:238802

約数の個数: 20

約数和(自身を含む): 44414940

約数和(自身を除く): 25311820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 238789, 477578, 955156, 1193945, 1910312, 2387890, 3820624, 4775780, 9551560, 19103120]

約数ペア:

[(1, 19103120), (2, 9551560), (4, 4775780), (5, 3820624), (8, 2387890), (10, 1910312), (16, 1193945), (20, 955156), (40, 477578), (80, 238789)]