81553030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1429}}^1$

素因数の和:1888

約数の個数: 32

約数和(自身を含む): 158558400

約数和(自身を除く): 77005370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 439, 878, 1429, 2195, 2858, 4390, 5707, 7145, 11414, 14290, 18577, 28535, 37154, 57070, 92885, 185770, 627331, 1254662, 3136655, 6273310, 8155303, 16310606, 40776515, 81553030]

約数ペア:

[(1, 81553030), (2, 40776515), (5, 16310606), (10, 8155303), (13, 6273310), (26, 3136655), (65, 1254662), (130, 627331), (439, 185770), (878, 92885), (1429, 57070), (2195, 37154), (2858, 28535), (4390, 18577), (5707, 14290), (7145, 11414)]