2493490

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{641}}^1$

素因数の和:1037

約数の個数: 16

約数和(自身を含む): 4506840

約数和(自身を除く): 2013350

約数列:

[1, 2, 5, 10, 389, 641, 778, 1282, 1945, 3205, 3890, 6410, 249349, 498698, 1246745, 2493490]

約数ペア:

[(1, 2493490), (2, 1246745), (5, 498698), (10, 249349), (389, 6410), (641, 3890), (778, 3205), (1282, 1945)]