81126280

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{30271}}^1$

素因数の和:30349

約数の個数: 32

約数和(自身を含む): 185264640

約数和(自身を除く): 104138360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 30271, 60542, 121084, 151355, 242168, 302710, 605420, 1210840, 2028157, 4056314, 8112628, 10140785, 16225256, 20281570, 40563140, 81126280]

約数ペア:

[(1, 81126280), (2, 40563140), (4, 20281570), (5, 16225256), (8, 10140785), (10, 8112628), (20, 4056314), (40, 2028157), (67, 1210840), (134, 605420), (268, 302710), (335, 242168), (536, 151355), (670, 121084), (1340, 60542), (2680, 30271)]