7881275440

素因数分解:

$2^4\times 5^1\times {\mathrm{98515943}}^1$

素因数の和:98515956

約数の個数: 20

約数和(自身を含む): 18323965584

約数和(自身を除く): 10442690144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 98515943, 197031886, 394063772, 492579715, 788127544, 985159430, 1576255088, 1970318860, 3940637720, 7881275440]

約数ペア:

[(1, 7881275440), (2, 3940637720), (4, 1970318860), (5, 1576255088), (8, 985159430), (10, 788127544), (16, 492579715), (20, 394063772), (40, 197031886), (80, 98515943)]