78012020

素因数分解:

$2^2\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{3331}}^1$

素因数の和:4511

約数の個数: 24

約数和(自身を含む): 164014368

約数和(自身を除く): 86002348

約数列:

[1, 2, 4, 5, 10, 20, 1171, 2342, 3331, 4684, 5855, 6662, 11710, 13324, 16655, 23420, 33310, 66620, 3900601, 7801202, 15602404, 19503005, 39006010, 78012020]

約数ペア:

[(1, 78012020), (2, 39006010), (4, 19503005), (5, 15602404), (10, 7801202), (20, 3900601), (1171, 66620), (2342, 33310), (3331, 23420), (4684, 16655), (5855, 13324), (6662, 11710)]