64142020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{188653}}^1$

素因数の和:188679

約数の個数: 24

約数和(自身を含む): 142622424

約数和(自身を除く): 78480404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 188653, 377306, 754612, 943265, 1886530, 3207101, 3773060, 6414202, 12828404, 16035505, 32071010, 64142020]

約数ペア:

[(1, 64142020), (2, 32071010), (4, 16035505), (5, 12828404), (10, 6414202), (17, 3773060), (20, 3207101), (34, 1886530), (68, 943265), (85, 754612), (170, 377306), (340, 188653)]