81404310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208729}}^1$

素因数の和:208752

約数の個数: 32

約数和(自身を含む): 210399840

約数和(自身を除く): 128995530

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208729, 417458, 626187, 1043645, 1252374, 2087290, 2713477, 3130935, 5426954, 6261870, 8140431, 13567385, 16280862, 27134770, 40702155, 81404310]

約数ペア:

[(1, 81404310), (2, 40702155), (3, 27134770), (5, 16280862), (6, 13567385), (10, 8140431), (13, 6261870), (15, 5426954), (26, 3130935), (30, 2713477), (39, 2087290), (65, 1252374), (78, 1043645), (130, 626187), (195, 417458), (390, 208729)]