20284355

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 30307200

約数和(自身を除く): 10022845

約数列:

[1, 5, 7, 13, 35, 65, 91, 109, 409, 455, 545, 763, 1417, 2045, 2863, 3815, 5317, 7085, 9919, 14315, 26585, 37219, 44581, 49595, 186095, 222905, 312067, 579553, 1560335, 2897765, 4056871, 20284355]

約数ペア:

[(1, 20284355), (5, 4056871), (7, 2897765), (13, 1560335), (35, 579553), (65, 312067), (91, 222905), (109, 186095), (409, 49595), (455, 44581), (545, 37219), (763, 26585), (1417, 14315), (2045, 9919), (2863, 7085), (3815, 5317)]