1978885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 2598912

約数和(自身を除く): 620027

約数列:

[1, 5, 17, 31, 85, 155, 527, 751, 2635, 3755, 12767, 23281, 63835, 116405, 395777, 1978885]

約数ペア:

[(1, 1978885), (5, 395777), (17, 116405), (31, 63835), (85, 23281), (155, 12767), (527, 3755), (751, 2635)]