720216441

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{74719}}^1$

素因数の和:74755

約数の個数: 40

約数和(自身を含む): 1301921280

約数和(自身を除く): 581704839

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 3213, 9639, 74719, 224157, 523033, 672471, 1270223, 1569099, 2017413, 3810669, 4707297, 6052239, 8891561, 11432007, 14121891, 26674683, 34296021, 42365673, 80024049, 102888063, 240072147, 720216441]

約数ペア:

[(1, 720216441), (3, 240072147), (7, 102888063), (9, 80024049), (17, 42365673), (21, 34296021), (27, 26674683), (51, 14121891), (63, 11432007), (81, 8891561), (119, 6052239), (153, 4707297), (189, 3810669), (357, 2017413), (459, 1569099), (567, 1270223), (1071, 672471), (1377, 523033), (3213, 224157), (9639, 74719)]