81501576

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261223}}^1$

素因数の和:261245

約数の個数: 32

約数和(自身を含む): 219428160

約数和(自身を除く): 137926584

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261223, 522446, 783669, 1044892, 1567338, 2089784, 3134676, 3395899, 6269352, 6791798, 10187697, 13583596, 20375394, 27167192, 40750788, 81501576]

約数ペア:

[(1, 81501576), (2, 40750788), (3, 27167192), (4, 20375394), (6, 13583596), (8, 10187697), (12, 6791798), (13, 6269352), (24, 3395899), (26, 3134676), (39, 2089784), (52, 1567338), (78, 1044892), (104, 783669), (156, 522446), (312, 261223)]