84978580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2293}}^1$

素因数の和:2428

約数の個数: 48

約数和(自身を含む): 190769040

約数和(自身を除く): 105790460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 2293, 3706, 4586, 7412, 9172, 9265, 11465, 18530, 22930, 37060, 38981, 45860, 77962, 155924, 194905, 249937, 389810, 499874, 779620, 999748, 1249685, 2499370, 4248929, 4998740, 8497858, 16995716, 21244645, 42489290, 84978580]

約数ペア:

[(1, 84978580), (2, 42489290), (4, 21244645), (5, 16995716), (10, 8497858), (17, 4998740), (20, 4248929), (34, 2499370), (68, 1249685), (85, 999748), (109, 779620), (170, 499874), (218, 389810), (340, 249937), (436, 194905), (545, 155924), (1090, 77962), (1853, 45860), (2180, 38981), (2293, 37060), (3706, 22930), (4586, 18530), (7412, 11465), (9172, 9265)]