11981180

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 26127360

約数和(自身を除く): 14146180

約数列:

[1, 2, 4, 5, 10, 20, 53, 89, 106, 127, 178, 212, 254, 265, 356, 445, 508, 530, 635, 890, 1060, 1270, 1780, 2540, 4717, 6731, 9434, 11303, 13462, 18868, 22606, 23585, 26924, 33655, 45212, 47170, 56515, 67310, 94340, 113030, 134620, 226060, 599059, 1198118, 2396236, 2995295, 5990590, 11981180]

約数ペア:

[(1, 11981180), (2, 5990590), (4, 2995295), (5, 2396236), (10, 1198118), (20, 599059), (53, 226060), (89, 134620), (106, 113030), (127, 94340), (178, 67310), (212, 56515), (254, 47170), (265, 45212), (356, 33655), (445, 26924), (508, 23585), (530, 22606), (635, 18868), (890, 13462), (1060, 11303), (1270, 9434), (1780, 6731), (2540, 4717)]