20477210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2351}}^1$

素因数の和:2438

約数の個数: 32

約数和(自身を含む): 40303872

約数和(自身を除く): 19826662

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2351, 4355, 4702, 8710, 11755, 23510, 30563, 61126, 152815, 157517, 305630, 315034, 787585, 1575170, 2047721, 4095442, 10238605, 20477210]

約数ペア:

[(1, 20477210), (2, 10238605), (5, 4095442), (10, 2047721), (13, 1575170), (26, 787585), (65, 315034), (67, 305630), (130, 157517), (134, 152815), (335, 61126), (670, 30563), (871, 23510), (1742, 11755), (2351, 8710), (4355, 4702)]