81349710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208589}}^1$

素因数の和:208612

約数の個数: 32

約数和(自身を含む): 210258720

約数和(自身を除く): 128909010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208589, 417178, 625767, 1042945, 1251534, 2085890, 2711657, 3128835, 5423314, 6257670, 8134971, 13558285, 16269942, 27116570, 40674855, 81349710]

約数ペア:

[(1, 81349710), (2, 40674855), (3, 27116570), (5, 16269942), (6, 13558285), (10, 8134971), (13, 6257670), (15, 5423314), (26, 3128835), (30, 2711657), (39, 2085890), (65, 1251534), (78, 1042945), (130, 625767), (195, 417178), (390, 208589)]