80859940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{3191}}^1$

素因数の和:3388

約数の個数: 48

約数和(自身を含む): 195197184

約数和(自身を除く): 114337244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 905, 1267, 1810, 2534, 3191, 3620, 5068, 6335, 6382, 12670, 12764, 15955, 22337, 25340, 31910, 44674, 63820, 89348, 111685, 223370, 446740, 577571, 1155142, 2310284, 2887855, 4042997, 5775710, 8085994, 11551420, 16171988, 20214985, 40429970, 80859940]

約数ペア:

[(1, 80859940), (2, 40429970), (4, 20214985), (5, 16171988), (7, 11551420), (10, 8085994), (14, 5775710), (20, 4042997), (28, 2887855), (35, 2310284), (70, 1155142), (140, 577571), (181, 446740), (362, 223370), (724, 111685), (905, 89348), (1267, 63820), (1810, 44674), (2534, 31910), (3191, 25340), (3620, 22337), (5068, 15955), (6335, 12764), (6382, 12670)]