557680

素因数分解:

$2^4\times 5^1\times {\mathrm{6971}}^1$

素因数の和:6984

約数の個数: 20

約数和(自身を含む): 1296792

約数和(自身を除く): 739112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6971, 13942, 27884, 34855, 55768, 69710, 111536, 139420, 278840, 557680]

約数ペア:

[(1, 557680), (2, 278840), (4, 139420), (5, 111536), (8, 69710), (10, 55768), (16, 34855), (20, 27884), (40, 13942), (80, 6971)]