2631260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 5987520

約数和(自身を除く): 3356260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 109, 142, 170, 218, 284, 340, 355, 436, 545, 710, 1090, 1207, 1420, 1853, 2180, 2414, 3706, 4828, 6035, 7412, 7739, 9265, 12070, 15478, 18530, 24140, 30956, 37060, 38695, 77390, 131563, 154780, 263126, 526252, 657815, 1315630, 2631260]

約数ペア:

[(1, 2631260), (2, 1315630), (4, 657815), (5, 526252), (10, 263126), (17, 154780), (20, 131563), (34, 77390), (68, 38695), (71, 37060), (85, 30956), (109, 24140), (142, 18530), (170, 15478), (218, 12070), (284, 9265), (340, 7739), (355, 7412), (436, 6035), (545, 4828), (710, 3706), (1090, 2414), (1207, 2180), (1420, 1853)]