1985265

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 3475368

約数和(自身を除く): 1490103

約数列:

[1, 3, 5, 9, 15, 45, 157, 281, 471, 785, 843, 1405, 1413, 2355, 2529, 4215, 7065, 12645, 44117, 132351, 220585, 397053, 661755, 1985265]

約数ペア:

[(1, 1985265), (3, 661755), (5, 397053), (9, 220585), (15, 132351), (45, 44117), (157, 12645), (281, 7065), (471, 4215), (785, 2529), (843, 2355), (1405, 1413)]