20940035

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2549}}^1$

素因数の和:2638

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 5498365

約数列:

[1, 5, 31, 53, 155, 265, 1643, 2549, 8215, 12745, 79019, 135097, 395095, 675485, 4188007, 20940035]

約数ペア:

[(1, 20940035), (5, 4188007), (31, 675485), (53, 395095), (155, 135097), (265, 79019), (1643, 12745), (2549, 8215)]