4954997680

素因数分解:

$2^4\times 5^1\times {\mathrm{61937471}}^1$

素因数の和:61937484

約数の個数: 20

約数和(自身を含む): 11520369792

約数和(自身を除く): 6565372112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 61937471, 123874942, 247749884, 309687355, 495499768, 619374710, 990999536, 1238749420, 2477498840, 4954997680]

約数ペア:

[(1, 4954997680), (2, 2477498840), (4, 1238749420), (5, 990999536), (8, 619374710), (10, 495499768), (16, 309687355), (20, 247749884), (40, 123874942), (80, 61937471)]