19992234145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{73459}}^1$

素因数の和:73609

約数の個数: 32

約数和(自身を含む): 26657164800

約数和(自身を除く): 6664930655

約数列:

[1, 5, 13, 53, 65, 79, 265, 395, 689, 1027, 3445, 4187, 5135, 20935, 54431, 73459, 272155, 367295, 954967, 3893327, 4774835, 5803261, 19466635, 29016305, 50613251, 75442393, 253066255, 307572833, 377211965, 1537864165, 3998446829, 19992234145]

約数ペア:

[(1, 19992234145), (5, 3998446829), (13, 1537864165), (53, 377211965), (65, 307572833), (79, 253066255), (265, 75442393), (395, 50613251), (689, 29016305), (1027, 19466635), (3445, 5803261), (4187, 4774835), (5135, 3893327), (20935, 954967), (54431, 367295), (73459, 272155)]