178664590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{25931}}^1$

素因数の和:26004

約数の個数: 32

約数和(自身を含む): 352882656

約数和(自身を除く): 174218066

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 25931, 51862, 129655, 259310, 337103, 674206, 1374343, 1685515, 2748686, 3371030, 6871715, 13743430, 17866459, 35732918, 89332295, 178664590]

約数ペア:

[(1, 178664590), (2, 89332295), (5, 35732918), (10, 17866459), (13, 13743430), (26, 6871715), (53, 3371030), (65, 2748686), (106, 1685515), (130, 1374343), (265, 674206), (530, 337103), (689, 259310), (1378, 129655), (3445, 51862), (6890, 25931)]