81456368

素因数分解:

$2^4\times 7^1\times {\mathrm{727289}}^1$

素因数の和:727304

約数の個数: 20

約数和(自身を含む): 180367920

約数和(自身を除く): 98911552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 727289, 1454578, 2909156, 5091023, 5818312, 10182046, 11636624, 20364092, 40728184, 81456368]

約数ペア:

[(1, 81456368), (2, 40728184), (4, 20364092), (7, 11636624), (8, 10182046), (14, 5818312), (16, 5091023), (28, 2909156), (56, 1454578), (112, 727289)]