81261856

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{195341}}^1$

素因数の和:195364

約数の個数: 24

約数和(自身を含む): 172291644

約数和(自身を除く): 91029788

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 195341, 390682, 781364, 1562728, 2539433, 3125456, 5078866, 6250912, 10157732, 20315464, 40630928, 81261856]

約数ペア:

[(1, 81261856), (2, 40630928), (4, 20315464), (8, 10157732), (13, 6250912), (16, 5078866), (26, 3125456), (32, 2539433), (52, 1562728), (104, 781364), (208, 390682), (416, 195341)]