40007984

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{11213}}^1$

素因数の和:11444

約数の個数: 20

約数和(自身を含む): 77870016

約数和(自身を除く): 37862032

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 11213, 22426, 44852, 89704, 179408, 2500499, 5000998, 10001996, 20003992, 40007984]

約数ペア:

[(1, 40007984), (2, 20003992), (4, 10001996), (8, 5000998), (16, 2500499), (223, 179408), (446, 89704), (892, 44852), (1784, 22426), (3568, 11213)]