12780495581

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{5581}}^1$

素因数の和:5853

約数の個数: 32

約数和(自身を含む): 15415965696

約数和(自身を除く): 2635470115

約数列:

[1, 7, 31, 61, 173, 217, 427, 1211, 1891, 5363, 5581, 10553, 13237, 37541, 39067, 73871, 173011, 327143, 340441, 965513, 1211077, 2290001, 2383087, 6758591, 10553671, 29930903, 58896293, 73875697, 209516321, 412274051, 1825785083, 12780495581]

約数ペア:

[(1, 12780495581), (7, 1825785083), (31, 412274051), (61, 209516321), (173, 73875697), (217, 58896293), (427, 29930903), (1211, 10553671), (1891, 6758591), (5363, 2383087), (5581, 2290001), (10553, 1211077), (13237, 965513), (37541, 340441), (39067, 327143), (73871, 173011)]