81236648

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{743}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 155347200

約数和(自身を除く): 74110552

約数列:

[1, 2, 4, 8, 79, 158, 173, 316, 346, 632, 692, 743, 1384, 1486, 2972, 5944, 13667, 27334, 54668, 58697, 109336, 117394, 128539, 234788, 257078, 469576, 514156, 1028312, 10154581, 20309162, 40618324, 81236648]

約数ペア:

[(1, 81236648), (2, 40618324), (4, 20309162), (8, 10154581), (79, 1028312), (158, 514156), (173, 469576), (316, 257078), (346, 234788), (632, 128539), (692, 117394), (743, 109336), (1384, 58697), (1486, 54668), (2972, 27334), (5944, 13667)]