18040915

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:762

約数の個数: 16

約数和(自身を含む): 22487040

約数和(自身を除く): 4446125

約数列:

[1, 5, 31, 155, 239, 487, 1195, 2435, 7409, 15097, 37045, 75485, 116393, 581965, 3608183, 18040915]

約数ペア:

[(1, 18040915), (5, 3608183), (31, 581965), (155, 116393), (239, 75485), (487, 37045), (1195, 15097), (2435, 7409)]