81267400

素因数分解:

$2^3\times 5^2\times {\mathrm{347}}^1\times {\mathrm{1171}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 189653040

約数和(自身を除く): 108385640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 347, 694, 1171, 1388, 1735, 2342, 2776, 3470, 4684, 5855, 6940, 8675, 9368, 11710, 13880, 17350, 23420, 29275, 34700, 46840, 58550, 69400, 117100, 234200, 406337, 812674, 1625348, 2031685, 3250696, 4063370, 8126740, 10158425, 16253480, 20316850, 40633700, 81267400]

約数ペア:

[(1, 81267400), (2, 40633700), (4, 20316850), (5, 16253480), (8, 10158425), (10, 8126740), (20, 4063370), (25, 3250696), (40, 2031685), (50, 1625348), (100, 812674), (200, 406337), (347, 234200), (694, 117100), (1171, 69400), (1388, 58550), (1735, 46840), (2342, 34700), (2776, 29275), (3470, 23420), (4684, 17350), (5855, 13880), (6940, 11710), (8675, 9368)]