20123013555

素因数分解:

$3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{783149}}^1$

素因数の和:783731

約数の個数: 24

約数和(自身を含む): 34941020400

約数和(自身を除く): 14818006845

約数列:

[1, 3, 5, 9, 15, 45, 571, 1713, 2855, 5139, 8565, 25695, 783149, 2349447, 3915745, 7048341, 11747235, 35241705, 447178079, 1341534237, 2235890395, 4024602711, 6707671185, 20123013555]

約数ペア:

[(1, 20123013555), (3, 6707671185), (5, 4024602711), (9, 2235890395), (15, 1341534237), (45, 447178079), (571, 35241705), (1713, 11747235), (2855, 7048341), (5139, 3915745), (8565, 2349447), (25695, 783149)]