69505640

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{6607}}^1$

素因数の和:6881

約数の個数: 32

約数和(自身を含む): 157006080

約数和(自身を除く): 87500440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 6607, 10520, 13214, 26428, 33035, 52856, 66070, 132140, 264280, 1737641, 3475282, 6950564, 8688205, 13901128, 17376410, 34752820, 69505640]

約数ペア:

[(1, 69505640), (2, 34752820), (4, 17376410), (5, 13901128), (8, 8688205), (10, 6950564), (20, 3475282), (40, 1737641), (263, 264280), (526, 132140), (1052, 66070), (1315, 52856), (2104, 33035), (2630, 26428), (5260, 13214), (6607, 10520)]