81484364

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{120539}}^1$

素因数の和:120569

約数の個数: 18

約数和(自身を含む): 154411740

約数和(自身を除く): 72927376

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 120539, 241078, 482156, 1567007, 3134014, 6268028, 20371091, 40742182, 81484364]

約数ペア:

[(1, 81484364), (2, 40742182), (4, 20371091), (13, 6268028), (26, 3134014), (52, 1567007), (169, 482156), (338, 241078), (676, 120539)]