31996240

素因数分解:

$2^4\times 5^1\times {\mathrm{399953}}^1$

素因数の和:399966

約数の個数: 20

約数和(自身を含む): 74391444

約数和(自身を除く): 42395204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399953, 799906, 1599812, 1999765, 3199624, 3999530, 6399248, 7999060, 15998120, 31996240]

約数ペア:

[(1, 31996240), (2, 15998120), (4, 7999060), (5, 6399248), (8, 3999530), (10, 3199624), (16, 1999765), (20, 1599812), (40, 799906), (80, 399953)]