66769456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321007}}^1$

素因数の和:321028

約数の個数: 20

約数和(自身を含む): 139317472

約数和(自身を除く): 72548016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321007, 642014, 1284028, 2568056, 4173091, 5136112, 8346182, 16692364, 33384728, 66769456]

約数ペア:

[(1, 66769456), (2, 33384728), (4, 16692364), (8, 8346182), (13, 5136112), (16, 4173091), (26, 2568056), (52, 1284028), (104, 642014), (208, 321007)]