19968070

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3923}}^1$

素因数の和:4439

約数の個数: 16

約数和(自身を含む): 36022320

約数和(自身を除く): 16054250

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 3923, 5090, 7846, 19615, 39230, 1996807, 3993614, 9984035, 19968070]

約数ペア:

[(1, 19968070), (2, 9984035), (5, 3993614), (10, 1996807), (509, 39230), (1018, 19615), (2545, 7846), (3923, 5090)]