81669028

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{41081}}^1$

素因数の和:41163

約数の個数: 24

約数和(自身を含む): 165642624

約数和(自身を除く): 83973596

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 41081, 82162, 164324, 287567, 575134, 1150268, 2916751, 5833502, 11667004, 20417257, 40834514, 81669028]

約数ペア:

[(1, 81669028), (2, 40834514), (4, 20417257), (7, 11667004), (14, 5833502), (28, 2916751), (71, 1150268), (142, 575134), (284, 287567), (497, 164324), (994, 82162), (1988, 41081)]