1273978415

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{1481}}^1\times {\mathrm{4001}}^1$

素因数の和:5530

約数の個数: 16

約数和(自身を含む): 1565774496

約数和(自身を除く): 291796081

約数列:

[1, 5, 43, 215, 1481, 4001, 7405, 20005, 63683, 172043, 318415, 860215, 5925481, 29627405, 254795683, 1273978415]

約数ペア:

[(1, 1273978415), (5, 254795683), (43, 29627405), (215, 5925481), (1481, 860215), (4001, 318415), (7405, 172043), (20005, 63683)]