81305432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18181}}^1$

素因数の和:18243

約数の個数: 32

約数和(自身を含む): 168001680

約数和(自身を除く): 86696248

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 18181, 36362, 72724, 145448, 236353, 472706, 781783, 945412, 1563566, 1890824, 3127132, 6254264, 10163179, 20326358, 40652716, 81305432]

約数ペア:

[(1, 81305432), (2, 40652716), (4, 20326358), (8, 10163179), (13, 6254264), (26, 3127132), (43, 1890824), (52, 1563566), (86, 945412), (104, 781783), (172, 472706), (344, 236353), (559, 145448), (1118, 72724), (2236, 36362), (4472, 18181)]