81390686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{100981}}^1$

素因数の和:101027

約数の個数: 16

約数和(自身を含む): 135719808

約数和(自身を除く): 54329122

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 100981, 201962, 1312753, 2625506, 3130411, 6260822, 40695343, 81390686]

約数ペア:

[(1, 81390686), (2, 40695343), (13, 6260822), (26, 3130411), (31, 2625506), (62, 1312753), (403, 201962), (806, 100981)]