71322280

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{10939}}^1$

素因数の和:11113

約数の個数: 32

約数和(自身を含む): 161474400

約数和(自身を除く): 90152120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 10939, 21878, 43756, 54695, 87512, 109390, 218780, 437560, 1783057, 3566114, 7132228, 8915285, 14264456, 17830570, 35661140, 71322280]

約数ペア:

[(1, 71322280), (2, 35661140), (4, 17830570), (5, 14264456), (8, 8915285), (10, 7132228), (20, 3566114), (40, 1783057), (163, 437560), (326, 218780), (652, 109390), (815, 87512), (1304, 54695), (1630, 43756), (3260, 21878), (6520, 10939)]