81724408

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{143881}}^1$

素因数の和:143958

約数の個数: 16

約数和(自身を含む): 155392560

約数和(自身を除く): 73668152

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 143881, 287762, 575524, 1151048, 10215551, 20431102, 40862204, 81724408]

約数ペア:

[(1, 81724408), (2, 40862204), (4, 20431102), (8, 10215551), (71, 1151048), (142, 575524), (284, 287762), (568, 143881)]