66705392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320699}}^1$

素因数の和:320720

約数の個数: 20

約数和(自身を含む): 139183800

約数和(自身を除く): 72478408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320699, 641398, 1282796, 2565592, 4169087, 5131184, 8338174, 16676348, 33352696, 66705392]

約数ペア:

[(1, 66705392), (2, 33352696), (4, 16676348), (8, 8338174), (13, 5131184), (16, 4169087), (26, 2565592), (52, 1282796), (104, 641398), (208, 320699)]