81034280

素因数分解:

$2^3\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{1579}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 182584800

約数和(自身を除く): 101550520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283, 1579, 2566, 3158, 5132, 6316, 6415, 7895, 10264, 12632, 12830, 15790, 25660, 31580, 51320, 63160, 2025857, 4051714, 8103428, 10129285, 16206856, 20258570, 40517140, 81034280]

約数ペア:

[(1, 81034280), (2, 40517140), (4, 20258570), (5, 16206856), (8, 10129285), (10, 8103428), (20, 4051714), (40, 2025857), (1283, 63160), (1579, 51320), (2566, 31580), (3158, 25660), (5132, 15790), (6316, 12830), (6415, 12632), (7895, 10264)]