81574455

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1427}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 135442944

約数和(自身を除く): 53868489

約数列:

[1, 3, 5, 15, 37, 103, 111, 185, 309, 515, 555, 1427, 1545, 3811, 4281, 7135, 11433, 19055, 21405, 52799, 57165, 146981, 158397, 263995, 440943, 734905, 791985, 2204715, 5438297, 16314891, 27191485, 81574455]

約数ペア:

[(1, 81574455), (3, 27191485), (5, 16314891), (15, 5438297), (37, 2204715), (103, 791985), (111, 734905), (185, 440943), (309, 263995), (515, 158397), (555, 146981), (1427, 57165), (1545, 52799), (3811, 21405), (4281, 19055), (7135, 11433)]