1330990420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{842399}}^1$

素因数の和:842487

約数の個数: 24

約数和(自身を含む): 2830464000

約数和(自身を除く): 1499473580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 842399, 1684798, 3369596, 4211995, 8423990, 16847980, 66549521, 133099042, 266198084, 332747605, 665495210, 1330990420]

約数ペア:

[(1, 1330990420), (2, 665495210), (4, 332747605), (5, 266198084), (10, 133099042), (20, 66549521), (79, 16847980), (158, 8423990), (316, 4211995), (395, 3369596), (790, 1684798), (1580, 842399)]