1217905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 1615824

約数和(自身を除く): 397919

約数列:

[1, 5, 13, 41, 65, 205, 457, 533, 2285, 2665, 5941, 18737, 29705, 93685, 243581, 1217905]

約数ペア:

[(1, 1217905), (5, 243581), (13, 93685), (41, 29705), (65, 18737), (205, 5941), (457, 2665), (533, 2285)]