20346664

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6311}}^1$

素因数の和:6361

約数の個数: 32

約数和(自身を含む): 42416640

約数和(自身を除く): 22069976

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6311, 12622, 25244, 50488, 82043, 164086, 195641, 328172, 391282, 656344, 782564, 1565128, 2543333, 5086666, 10173332, 20346664]

約数ペア:

[(1, 20346664), (2, 10173332), (4, 5086666), (8, 2543333), (13, 1565128), (26, 782564), (31, 656344), (52, 391282), (62, 328172), (104, 195641), (124, 164086), (248, 82043), (403, 50488), (806, 25244), (1612, 12622), (3224, 6311)]