81153256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{1613}}^1$

素因数の和:1969

約数の個数: 32

約数和(自身を含む): 160754400

約数和(自身を除く): 79601144

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 331, 662, 1324, 1613, 2648, 3226, 6289, 6452, 12578, 12904, 25156, 30647, 50312, 61294, 122588, 245176, 533903, 1067806, 2135612, 4271224, 10144157, 20288314, 40576628, 81153256]

約数ペア:

[(1, 81153256), (2, 40576628), (4, 20288314), (8, 10144157), (19, 4271224), (38, 2135612), (76, 1067806), (152, 533903), (331, 245176), (662, 122588), (1324, 61294), (1613, 50312), (2648, 30647), (3226, 25156), (6289, 12904), (6452, 12578)]