68356455

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 112907520

約数和(自身を除く): 44551065

約数列:

[1, 3, 5, 15, 43, 129, 131, 215, 393, 645, 655, 809, 1965, 2427, 4045, 5633, 12135, 16899, 28165, 34787, 84495, 104361, 105979, 173935, 317937, 521805, 529895, 1589685, 4557097, 13671291, 22785485, 68356455]

約数ペア:

[(1, 68356455), (3, 22785485), (5, 13671291), (15, 4557097), (43, 1589685), (129, 529895), (131, 521805), (215, 317937), (393, 173935), (645, 105979), (655, 104361), (809, 84495), (1965, 34787), (2427, 28165), (4045, 16899), (5633, 12135)]