81497395

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3491}}^1$

素因数の和:3555

約数の個数: 32

約数和(自身を含む): 120683520

約数和(自身を除く): 39186125

約数列:

[1, 5, 7, 23, 29, 35, 115, 145, 161, 203, 667, 805, 1015, 3335, 3491, 4669, 17455, 23345, 24437, 80293, 101239, 122185, 401465, 506195, 562051, 708673, 2328497, 2810255, 3543365, 11642485, 16299479, 81497395]

約数ペア:

[(1, 81497395), (5, 16299479), (7, 11642485), (23, 3543365), (29, 2810255), (35, 2328497), (115, 708673), (145, 562051), (161, 506195), (203, 401465), (667, 122185), (805, 101239), (1015, 80293), (3335, 24437), (3491, 23345), (4669, 17455)]