71136680

素因数分解:

$2^3\times 5^1\times {\mathrm{1778417}}^1$

素因数の和:1778428

約数の個数: 16

約数和(自身を含む): 160057620

約数和(自身を除く): 88920940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1778417, 3556834, 7113668, 8892085, 14227336, 17784170, 35568340, 71136680]

約数ペア:

[(1, 71136680), (2, 35568340), (4, 17784170), (5, 14227336), (8, 8892085), (10, 7113668), (20, 3556834), (40, 1778417)]