64990564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{4943}}^1$

素因数の和:5139

約数の個数: 24

約数和(自身を含む): 120435840

約数和(自身を除く): 55445276

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 3287, 4943, 6574, 9886, 13148, 19772, 93917, 187834, 375668, 855139, 1710278, 3420556, 16247641, 32495282, 64990564]

約数ペア:

[(1, 64990564), (2, 32495282), (4, 16247641), (19, 3420556), (38, 1710278), (76, 855139), (173, 375668), (346, 187834), (692, 93917), (3287, 19772), (4943, 13148), (6574, 9886)]