28520645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{797}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 36369648

約数和(自身を除く): 7849003

約数列:

[1, 5, 17, 85, 421, 797, 2105, 3985, 7157, 13549, 35785, 67745, 335537, 1677685, 5704129, 28520645]

約数ペア:

[(1, 28520645), (5, 5704129), (17, 1677685), (85, 335537), (421, 67745), (797, 35785), (2105, 13549), (3985, 7157)]