1980345

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^2$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 3298176

約数和(自身を除く): 1317831

約数列:

[1, 3, 5, 15, 47, 53, 141, 159, 235, 265, 705, 795, 2491, 2809, 7473, 8427, 12455, 14045, 37365, 42135, 132023, 396069, 660115, 1980345]

約数ペア:

[(1, 1980345), (3, 660115), (5, 396069), (15, 132023), (47, 42135), (53, 37365), (141, 14045), (159, 12455), (235, 8427), (265, 7473), (705, 2809), (795, 2491)]