40641680

素因数分解:

$2^4\times 5^1\times {\mathrm{508021}}^1$

素因数の和:508034

約数の個数: 20

約数和(自身を含む): 94492092

約数和(自身を除く): 53850412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 508021, 1016042, 2032084, 2540105, 4064168, 5080210, 8128336, 10160420, 20320840, 40641680]

約数ペア:

[(1, 40641680), (2, 20320840), (4, 10160420), (5, 8128336), (8, 5080210), (10, 4064168), (16, 2540105), (20, 2032084), (40, 1016042), (80, 508021)]