421761680

素因数分解:

$2^4\times 5^1\times {\mathrm{5272021}}^1$

素因数の和:5272034

約数の個数: 20

約数和(自身を含む): 980596092

約数和(自身を除く): 558834412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5272021, 10544042, 21088084, 26360105, 42176168, 52720210, 84352336, 105440420, 210880840, 421761680]

約数ペア:

[(1, 421761680), (2, 210880840), (4, 105440420), (5, 84352336), (8, 52720210), (10, 42176168), (16, 26360105), (20, 21088084), (40, 10544042), (80, 5272021)]