81075124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 158336640

約数和(自身を除く): 77261516

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 101, 172, 202, 359, 404, 559, 718, 1118, 1313, 1436, 2236, 2626, 4343, 4667, 5252, 8686, 9334, 15437, 17372, 18668, 30874, 36259, 56459, 61748, 72518, 112918, 145036, 200681, 225836, 401362, 471367, 802724, 942734, 1559137, 1885468, 3118274, 6236548, 20268781, 40537562, 81075124]

約数ペア:

[(1, 81075124), (2, 40537562), (4, 20268781), (13, 6236548), (26, 3118274), (43, 1885468), (52, 1559137), (86, 942734), (101, 802724), (172, 471367), (202, 401362), (359, 225836), (404, 200681), (559, 145036), (718, 112918), (1118, 72518), (1313, 61748), (1436, 56459), (2236, 36259), (2626, 30874), (4343, 18668), (4667, 17372), (5252, 15437), (8686, 9334)]