90291860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{827}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 195302016

約数和(自身を除く): 105010156

約数列:

[1, 2, 4, 5, 10, 20, 53, 103, 106, 206, 212, 265, 412, 515, 530, 827, 1030, 1060, 1654, 2060, 3308, 4135, 5459, 8270, 10918, 16540, 21836, 27295, 43831, 54590, 85181, 87662, 109180, 170362, 175324, 219155, 340724, 425905, 438310, 851810, 876620, 1703620, 4514593, 9029186, 18058372, 22572965, 45145930, 90291860]

約数ペア:

[(1, 90291860), (2, 45145930), (4, 22572965), (5, 18058372), (10, 9029186), (20, 4514593), (53, 1703620), (103, 876620), (106, 851810), (206, 438310), (212, 425905), (265, 340724), (412, 219155), (515, 175324), (530, 170362), (827, 109180), (1030, 87662), (1060, 85181), (1654, 54590), (2060, 43831), (3308, 27295), (4135, 21836), (5459, 16540), (8270, 10918)]