81803960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{292157}}^1$

素因数の和:292175

約数の個数: 32

約数和(自身を含む): 210353760

約数和(自身を除く): 128549800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 292157, 584314, 1168628, 1460785, 2045099, 2337256, 2921570, 4090198, 5843140, 8180396, 10225495, 11686280, 16360792, 20450990, 40901980, 81803960]

約数ペア:

[(1, 81803960), (2, 40901980), (4, 20450990), (5, 16360792), (7, 11686280), (8, 10225495), (10, 8180396), (14, 5843140), (20, 4090198), (28, 2921570), (35, 2337256), (40, 2045099), (56, 1460785), (70, 1168628), (140, 584314), (280, 292157)]