4393520

素因数分解:

$2^4\times 5^1\times {\mathrm{54919}}^1$

素因数の和:54932

約数の個数: 20

約数和(自身を含む): 10215120

約数和(自身を除く): 5821600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 54919, 109838, 219676, 274595, 439352, 549190, 878704, 1098380, 2196760, 4393520]

約数ペア:

[(1, 4393520), (2, 2196760), (4, 1098380), (5, 878704), (8, 549190), (10, 439352), (16, 274595), (20, 219676), (40, 109838), (80, 54919)]