80668215

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 146285568

約数和(自身を除く): 65617353

約数列:

[1, 3, 5, 9, 15, 43, 45, 47, 129, 141, 215, 235, 387, 423, 645, 705, 887, 1935, 2021, 2115, 2661, 4435, 6063, 7983, 10105, 13305, 18189, 30315, 38141, 39915, 41689, 90945, 114423, 125067, 190705, 208445, 343269, 375201, 572115, 625335, 1716345, 1792627, 1876005, 5377881, 8963135, 16133643, 26889405, 80668215]

約数ペア:

[(1, 80668215), (3, 26889405), (5, 16133643), (9, 8963135), (15, 5377881), (43, 1876005), (45, 1792627), (47, 1716345), (129, 625335), (141, 572115), (215, 375201), (235, 343269), (387, 208445), (423, 190705), (645, 125067), (705, 114423), (887, 90945), (1935, 41689), (2021, 39915), (2115, 38141), (2661, 30315), (4435, 18189), (6063, 13305), (7983, 10105)]