81351316

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{2137}}^1$

素因数の和:2479

約数の個数: 24

約数和(自身を含む): 147504896

約数和(自身を除く): 66153580

約数列:

[1, 2, 4, 31, 62, 124, 307, 614, 1228, 2137, 4274, 8548, 9517, 19034, 38068, 66247, 132494, 264988, 656059, 1312118, 2624236, 20337829, 40675658, 81351316]

約数ペア:

[(1, 81351316), (2, 40675658), (4, 20337829), (31, 2624236), (62, 1312118), (124, 656059), (307, 264988), (614, 132494), (1228, 66247), (2137, 38068), (4274, 19034), (8548, 9517)]