15820840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{56503}}^1$

素因数の和:56521

約数の個数: 32

約数和(自身を含む): 40682880

約数和(自身を除く): 24862040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 56503, 113006, 226012, 282515, 395521, 452024, 565030, 791042, 1130060, 1582084, 1977605, 2260120, 3164168, 3955210, 7910420, 15820840]

約数ペア:

[(1, 15820840), (2, 7910420), (4, 3955210), (5, 3164168), (7, 2260120), (8, 1977605), (10, 1582084), (14, 1130060), (20, 791042), (28, 565030), (35, 452024), (40, 395521), (56, 282515), (70, 226012), (140, 113006), (280, 56503)]