20288290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1019}}^1$

素因数の和:1218

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 19809950

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 1019, 1810, 1991, 2038, 3982, 5095, 9955, 10190, 11209, 19910, 22418, 56045, 112090, 184439, 368878, 922195, 1844390, 2028829, 4057658, 10144145, 20288290]

約数ペア:

[(1, 20288290), (2, 10144145), (5, 4057658), (10, 2028829), (11, 1844390), (22, 922195), (55, 368878), (110, 184439), (181, 112090), (362, 56045), (905, 22418), (1019, 19910), (1810, 11209), (1991, 10190), (2038, 9955), (3982, 5095)]