720776961

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{1543}}^1$

素因数の和:1707

約数の個数: 40

約数和(自身を含む): 1105998080

約数和(自身を除く): 385221119

約数列:

[1, 3, 9, 27, 73, 79, 81, 219, 237, 657, 711, 1543, 1971, 2133, 4629, 5767, 5913, 6399, 13887, 17301, 41661, 51903, 112639, 121897, 124983, 155709, 337917, 365691, 467127, 1013751, 1097073, 3041253, 3291219, 8898481, 9123759, 9873657, 26695443, 80086329, 240258987, 720776961]

約数ペア:

[(1, 720776961), (3, 240258987), (9, 80086329), (27, 26695443), (73, 9873657), (79, 9123759), (81, 8898481), (219, 3291219), (237, 3041253), (657, 1097073), (711, 1013751), (1543, 467127), (1971, 365691), (2133, 337917), (4629, 155709), (5767, 124983), (5913, 121897), (6399, 112639), (13887, 51903), (17301, 41661)]