289601680

素因数分解:

$2^4\times 5^1\times {\mathrm{3620021}}^1$

素因数の和:3620034

約数の個数: 20

約数和(自身を含む): 673324092

約数和(自身を除く): 383722412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3620021, 7240042, 14480084, 18100105, 28960168, 36200210, 57920336, 72400420, 144800840, 289601680]

約数ペア:

[(1, 289601680), (2, 144800840), (4, 72400420), (5, 57920336), (8, 36200210), (10, 28960168), (16, 18100105), (20, 14480084), (40, 7240042), (80, 3620021)]