81780214

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{3329}}^1$

素因数の和:3575

約数の個数: 16

約数和(自身を含む): 125154720

約数和(自身を除く): 43374506

約数列:

[1, 2, 71, 142, 173, 346, 3329, 6658, 12283, 24566, 236359, 472718, 575917, 1151834, 40890107, 81780214]

約数ペア:

[(1, 81780214), (2, 40890107), (71, 1151834), (142, 575917), (173, 472718), (346, 236359), (3329, 24566), (6658, 12283)]