645307665

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{43499}}^1$

素因数の和:43573

約数の個数: 32

約数和(自身を含む): 1102464000

約数和(自身を除く): 457156335

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2967, 4945, 14835, 43499, 130497, 217495, 652485, 1000477, 1870457, 3001431, 5002385, 5611371, 9352285, 15007155, 28056855, 43020511, 129061533, 215102555, 645307665]

約数ペア:

[(1, 645307665), (3, 215102555), (5, 129061533), (15, 43020511), (23, 28056855), (43, 15007155), (69, 9352285), (115, 5611371), (129, 5002385), (215, 3001431), (345, 1870457), (645, 1000477), (989, 652485), (2967, 217495), (4945, 130497), (14835, 43499)]