81307485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{258119}}^1$

素因数の和:258137

約数の個数: 24

約数和(自身を含む): 161066880

約数和(自身を除く): 79759395

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 258119, 774357, 1290595, 1806833, 2323071, 3871785, 5420499, 9034165, 11615355, 16261497, 27102495, 81307485]

約数ペア:

[(1, 81307485), (3, 27102495), (5, 16261497), (7, 11615355), (9, 9034165), (15, 5420499), (21, 3871785), (35, 2323071), (45, 1806833), (63, 1290595), (105, 774357), (315, 258119)]