39902120

素因数分解:

$2^3\times 5^1\times {\mathrm{997553}}^1$

素因数の和:997564

約数の個数: 16

約数和(自身を含む): 89779860

約数和(自身を除く): 49877740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997553, 1995106, 3990212, 4987765, 7980424, 9975530, 19951060, 39902120]

約数ペア:

[(1, 39902120), (2, 19951060), (4, 9975530), (5, 7980424), (8, 4987765), (10, 3990212), (20, 1995106), (40, 997553)]