78521768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{857}}^1\times {\mathrm{881}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 158918760

約数和(自身を除く): 80396992

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 857, 881, 1714, 1762, 3428, 3524, 6856, 7048, 11141, 11453, 22282, 22906, 44564, 45812, 89128, 91624, 755017, 1510034, 3020068, 6040136, 9815221, 19630442, 39260884, 78521768]

約数ペア:

[(1, 78521768), (2, 39260884), (4, 19630442), (8, 9815221), (13, 6040136), (26, 3020068), (52, 1510034), (104, 755017), (857, 91624), (881, 89128), (1714, 45812), (1762, 44564), (3428, 22906), (3524, 22282), (6856, 11453), (7048, 11141)]