20584280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30271}}^1$

素因数の和:30299

約数の個数: 32

約数和(自身を含む): 49040640

約数和(自身を除く): 28456360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30271, 60542, 121084, 151355, 242168, 302710, 514607, 605420, 1029214, 1210840, 2058428, 2573035, 4116856, 5146070, 10292140, 20584280]

約数ペア:

[(1, 20584280), (2, 10292140), (4, 5146070), (5, 4116856), (8, 2573035), (10, 2058428), (17, 1210840), (20, 1029214), (34, 605420), (40, 514607), (68, 302710), (85, 242168), (136, 151355), (170, 121084), (340, 60542), (680, 30271)]